Home / 38,085.60-52,555.36-21,088.16

Finding the Fourth Proportional to 38,085.60, 52,555.36 and 21,088.16

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Solution

The fourth proportional to 38,085.60, 52,555.36 and 21,088.16 is: 29,100.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,085.60 : 52,555.36 = 21,088.16 : x
  2. Step 2: Convert to fraction form
    38,085.60/52,555.36 = 21,088.16/x
  3. Step 3: Cross multiply
    38,085.60x = 52,555.36 × 21,088.16
  4. Step 4: Simplify right side
    38,085.60x = 1,108,295,840.54
  5. Step 5: Solve for x
    x = 1,108,295,840.54/38,085.60
  6. Step 6: Final answer
    x = 29,100.13

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Half scale
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Double scale
Find fourth proportional to 38,086.60, 52,556.74 and 21,089.16
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.