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Finding the Fourth Proportional to 23,162.40, 34,750.80 and 9,124.20

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Solution

The fourth proportional to 23,162.40, 34,750.80 and 9,124.20 is: 13,689.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,162.40 : 34,750.80 = 9,124.20 : x
  2. Step 2: Convert to fraction form
    23,162.40/34,750.80 = 9,124.20/x
  3. Step 3: Cross multiply
    23,162.40x = 34,750.80 × 9,124.20
  4. Step 4: Simplify right side
    23,162.40x = 317,073,249.36
  5. Step 5: Solve for x
    x = 317,073,249.36/23,162.40
  6. Step 6: Final answer
    x = 13,689.14

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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.