Home / 21,517.13-29,624.99-18,151.58

Finding the Fourth Proportional to 21,517.13, 29,624.99 and 18,151.58

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Solution

The fourth proportional to 21,517.13, 29,624.99 and 18,151.58 is: 24,991.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,517.13 : 29,624.99 = 18,151.58 : x
  2. Step 2: Convert to fraction form
    21,517.13/29,624.99 = 18,151.58/x
  3. Step 3: Cross multiply
    21,517.13x = 29,624.99 × 18,151.58
  4. Step 4: Simplify right side
    21,517.13x = 537,740,137.10
  5. Step 5: Solve for x
    x = 537,740,137.10/21,517.13
  6. Step 6: Final answer
    x = 24,991.26

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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.