Home / 17,478.91-24,120.15-9,521.20

Finding the Fourth Proportional to 17,478.91, 24,120.15 and 9,521.20

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Solution

The fourth proportional to 17,478.91, 24,120.15 and 9,521.20 is: 13,138.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,478.91 : 24,120.15 = 9,521.20 : x
  2. Step 2: Convert to fraction form
    17,478.91/24,120.15 = 9,521.20/x
  3. Step 3: Cross multiply
    17,478.91x = 24,120.15 × 9,521.20
  4. Step 4: Simplify right side
    17,478.91x = 229,652,651.58
  5. Step 5: Solve for x
    x = 229,652,651.58/17,478.91
  6. Step 6: Final answer
    x = 13,138.85

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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.