Home / 17,890.30-24,687.38-9,931.90

Finding the Fourth Proportional to 17,890.30, 24,687.38 and 9,931.90

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Solution

The fourth proportional to 17,890.30, 24,687.38 and 9,931.90 is: 13,705.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,890.30 : 24,687.38 = 9,931.90 : x
  2. Step 2: Convert to fraction form
    17,890.30/24,687.38 = 9,931.90/x
  3. Step 3: Cross multiply
    17,890.30x = 24,687.38 × 9,931.90
  4. Step 4: Simplify right side
    17,890.30x = 245,192,589.42
  5. Step 5: Solve for x
    x = 245,192,589.42/17,890.30
  6. Step 6: Final answer
    x = 13,705.34

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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.