Home / 15,929.81-23,891.50-15,139.45

Finding the Fourth Proportional to 15,929.81, 23,891.50 and 15,139.45

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Solution

The fourth proportional to 15,929.81, 23,891.50 and 15,139.45 is: 22,706.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,929.81 : 23,891.50 = 15,139.45 : x
  2. Step 2: Convert to fraction form
    15,929.81/23,891.50 = 15,139.45/x
  3. Step 3: Cross multiply
    15,929.81x = 23,891.50 × 15,139.45
  4. Step 4: Simplify right side
    15,929.81x = 361,704,169.68
  5. Step 5: Solve for x
    x = 361,704,169.68/15,929.81
  6. Step 6: Final answer
    x = 22,706.12

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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.