Home / 21,484.28-32,188.29-8,976.78

Finding the Fourth Proportional to 21,484.28, 32,188.29 and 8,976.78

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Solution

The fourth proportional to 21,484.28, 32,188.29 and 8,976.78 is: 13,449.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,484.28 : 32,188.29 = 8,976.78 : x
  2. Step 2: Convert to fraction form
    21,484.28/32,188.29 = 8,976.78/x
  3. Step 3: Cross multiply
    21,484.28x = 32,188.29 × 8,976.78
  4. Step 4: Simplify right side
    21,484.28x = 288,947,197.91
  5. Step 5: Solve for x
    x = 288,947,197.91/21,484.28
  6. Step 6: Final answer
    x = 13,449.24

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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.