Home / 23,115.28-34,679.90-9,781.40

Finding the Fourth Proportional to 23,115.28, 34,679.90 and 9,781.40

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Solution

The fourth proportional to 23,115.28, 34,679.90 and 9,781.40 is: 14,675.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,115.28 : 34,679.90 = 9,781.40 : x
  2. Step 2: Convert to fraction form
    23,115.28/34,679.90 = 9,781.40/x
  3. Step 3: Cross multiply
    23,115.28x = 34,679.90 × 9,781.40
  4. Step 4: Simplify right side
    23,115.28x = 339,217,973.86
  5. Step 5: Solve for x
    x = 339,217,973.86/23,115.28
  6. Step 6: Final answer
    x = 14,675.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.