Home / 17,890.15-24,687.30-9,931.90

Finding the Fourth Proportional to 17,890.15, 24,687.30 and 9,931.90

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Solution

The fourth proportional to 17,890.15, 24,687.30 and 9,931.90 is: 13,705.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,890.15 : 24,687.30 = 9,931.90 : x
  2. Step 2: Convert to fraction form
    17,890.15/24,687.30 = 9,931.90/x
  3. Step 3: Cross multiply
    17,890.15x = 24,687.30 × 9,931.90
  4. Step 4: Simplify right side
    17,890.15x = 245,191,794.87
  5. Step 5: Solve for x
    x = 245,191,794.87/17,890.15
  6. Step 6: Final answer
    x = 13,705.41

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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.