Home / 22,491.04-31,045.92-13,538.96

Finding the Fourth Proportional to 22,491.04, 31,045.92 and 13,538.96

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Solution

The fourth proportional to 22,491.04, 31,045.92 and 13,538.96 is: 18,688.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,491.04 : 31,045.92 = 13,538.96 : x
  2. Step 2: Convert to fraction form
    22,491.04/31,045.92 = 13,538.96/x
  3. Step 3: Cross multiply
    22,491.04x = 31,045.92 × 13,538.96
  4. Step 4: Simplify right side
    22,491.04x = 420,329,469.04
  5. Step 5: Solve for x
    x = 420,329,469.04/22,491.04
  6. Step 6: Final answer
    x = 18,688.75

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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.