Home / 19,489.90-29,215.65-9,630.70

Finding the Fourth Proportional to 19,489.90, 29,215.65 and 9,630.70

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Solution

The fourth proportional to 19,489.90, 29,215.65 and 9,630.70 is: 14,436.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,489.90 : 29,215.65 = 9,630.70 : x
  2. Step 2: Convert to fraction form
    19,489.90/29,215.65 = 9,630.70/x
  3. Step 3: Cross multiply
    19,489.90x = 29,215.65 × 9,630.70
  4. Step 4: Simplify right side
    19,489.90x = 281,367,160.46
  5. Step 5: Solve for x
    x = 281,367,160.46/19,489.90
  6. Step 6: Final answer
    x = 14,436.56

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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.