Home / 38,111.56-52,588.69-21,111.59

Finding the Fourth Proportional to 38,111.56, 52,588.69 and 21,111.59

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Solution

The fourth proportional to 38,111.56, 52,588.69 and 21,111.59 is: 29,131.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,111.56 : 52,588.69 = 21,111.59 : x
  2. Step 2: Convert to fraction form
    38,111.56/52,588.69 = 21,111.59/x
  3. Step 3: Cross multiply
    38,111.56x = 52,588.69 × 21,111.59
  4. Step 4: Simplify right side
    38,111.56x = 1,110,230,763.55
  5. Step 5: Solve for x
    x = 1,110,230,763.55/38,111.56
  6. Step 6: Final answer
    x = 29,131.07

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Half scale
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Double scale
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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.