Home / 39,815.83-59,711.07-13,156.87

Finding the Fourth Proportional to 39,815.83, 59,711.07 and 13,156.87

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Solution

The fourth proportional to 39,815.83, 59,711.07 and 13,156.87 is: 19,731.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,815.83 : 59,711.07 = 13,156.87 : x
  2. Step 2: Convert to fraction form
    39,815.83/59,711.07 = 13,156.87/x
  3. Step 3: Cross multiply
    39,815.83x = 59,711.07 × 13,156.87
  4. Step 4: Simplify right side
    39,815.83x = 785,610,785.55
  5. Step 5: Solve for x
    x = 785,610,785.55/39,815.83
  6. Step 6: Final answer
    x = 19,731.12

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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.