Home / 29,306.92-40,443.41-15,878.13

Finding the Fourth Proportional to 29,306.92, 40,443.41 and 15,878.13

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Solution

The fourth proportional to 29,306.92, 40,443.41 and 15,878.13 is: 21,911.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,306.92 : 40,443.41 = 15,878.13 : x
  2. Step 2: Convert to fraction form
    29,306.92/40,443.41 = 15,878.13/x
  3. Step 3: Cross multiply
    29,306.92x = 40,443.41 × 15,878.13
  4. Step 4: Simplify right side
    29,306.92x = 642,165,721.62
  5. Step 5: Solve for x
    x = 642,165,721.62/29,306.92
  6. Step 6: Final answer
    x = 21,911.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.