Home / 29,306.68-40,443.16-15,878.27

Finding the Fourth Proportional to 29,306.68, 40,443.16 and 15,878.27

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Solution

The fourth proportional to 29,306.68, 40,443.16 and 15,878.27 is: 21,911.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,306.68 : 40,443.16 = 15,878.27 : x
  2. Step 2: Convert to fraction form
    29,306.68/40,443.16 = 15,878.27/x
  3. Step 3: Cross multiply
    29,306.68x = 40,443.16 × 15,878.27
  4. Step 4: Simplify right side
    29,306.68x = 642,167,132.53
  5. Step 5: Solve for x
    x = 642,167,132.53/29,306.68
  6. Step 6: Final answer
    x = 21,911.98

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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.