Home / 39,688.72-59,533.11-13,411.91

Finding the Fourth Proportional to 39,688.72, 59,533.11 and 13,411.91

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Solution

The fourth proportional to 39,688.72, 59,533.11 and 13,411.91 is: 20,117.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,688.72 : 59,533.11 = 13,411.91 : x
  2. Step 2: Convert to fraction form
    39,688.72/59,533.11 = 13,411.91/x
  3. Step 3: Cross multiply
    39,688.72x = 59,533.11 × 13,411.91
  4. Step 4: Simplify right side
    39,688.72x = 798,452,862.17
  5. Step 5: Solve for x
    x = 798,452,862.17/39,688.72
  6. Step 6: Final answer
    x = 20,117.88

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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.