Home / 38,917.43-53,708.78-22,150.43

Finding the Fourth Proportional to 38,917.43, 53,708.78 and 22,150.43

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Solution

The fourth proportional to 38,917.43, 53,708.78 and 22,150.43 is: 30,569.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,917.43 : 53,708.78 = 22,150.43 : x
  2. Step 2: Convert to fraction form
    38,917.43/53,708.78 = 22,150.43/x
  3. Step 3: Cross multiply
    38,917.43x = 53,708.78 × 22,150.43
  4. Step 4: Simplify right side
    38,917.43x = 1,189,672,461.02
  5. Step 5: Solve for x
    x = 1,189,672,461.02/38,917.43
  6. Step 6: Final answer
    x = 30,569.14

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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.