Home / 39,730.76-59,603.82-13,439.78

Finding the Fourth Proportional to 39,730.76, 59,603.82 and 13,439.78

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Solution

The fourth proportional to 39,730.76, 59,603.82 and 13,439.78 is: 20,162.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,730.76 : 59,603.82 = 13,439.78 : x
  2. Step 2: Convert to fraction form
    39,730.76/59,603.82 = 13,439.78/x
  3. Step 3: Cross multiply
    39,730.76x = 59,603.82 × 13,439.78
  4. Step 4: Simplify right side
    39,730.76x = 801,062,227.96
  5. Step 5: Solve for x
    x = 801,062,227.96/39,730.76
  6. Step 6: Final answer
    x = 20,162.27

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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.