Home / 57,962.36-86,965.42-20,520.92

Finding the Fourth Proportional to 57,962.36, 86,965.42 and 20,520.92

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Solution

The fourth proportional to 57,962.36, 86,965.42 and 20,520.92 is: 30,789.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,962.36 : 86,965.42 = 20,520.92 : x
  2. Step 2: Convert to fraction form
    57,962.36/86,965.42 = 20,520.92/x
  3. Step 3: Cross multiply
    57,962.36x = 86,965.42 × 20,520.92
  4. Step 4: Simplify right side
    57,962.36x = 1,784,610,426.59
  5. Step 5: Solve for x
    x = 1,784,610,426.59/57,962.36
  6. Step 6: Final answer
    x = 30,789.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.