Home / 38,988.19-53,803.60-21,083.14

Finding the Fourth Proportional to 38,988.19, 53,803.60 and 21,083.14

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Solution

The fourth proportional to 38,988.19, 53,803.60 and 21,083.14 is: 29,094.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,988.19 : 53,803.60 = 21,083.14 : x
  2. Step 2: Convert to fraction form
    38,988.19/53,803.60 = 21,083.14/x
  3. Step 3: Cross multiply
    38,988.19x = 53,803.60 × 21,083.14
  4. Step 4: Simplify right side
    38,988.19x = 1,134,348,831.30
  5. Step 5: Solve for x
    x = 1,134,348,831.30/38,988.19
  6. Step 6: Final answer
    x = 29,094.68

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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.