Home / 21,470.60-32,195.28-8,986.88

Finding the Fourth Proportional to 21,470.60, 32,195.28 and 8,986.88

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Solution

The fourth proportional to 21,470.60, 32,195.28 and 8,986.88 is: 13,475.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,470.60 : 32,195.28 = 8,986.88 : x
  2. Step 2: Convert to fraction form
    21,470.60/32,195.28 = 8,986.88/x
  3. Step 3: Cross multiply
    21,470.60x = 32,195.28 × 8,986.88
  4. Step 4: Simplify right side
    21,470.60x = 289,335,117.93
  5. Step 5: Solve for x
    x = 289,335,117.93/21,470.60
  6. Step 6: Final answer
    x = 13,475.87

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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.