Home / 21,637.50-32,456.46-8,491.20

Finding the Fourth Proportional to 21,637.50, 32,456.46 and 8,491.20

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Solution

The fourth proportional to 21,637.50, 32,456.46 and 8,491.20 is: 12,736.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,637.50 : 32,456.46 = 8,491.20 : x
  2. Step 2: Convert to fraction form
    21,637.50/32,456.46 = 8,491.20/x
  3. Step 3: Cross multiply
    21,637.50x = 32,456.46 × 8,491.20
  4. Step 4: Simplify right side
    21,637.50x = 275,594,293.15
  5. Step 5: Solve for x
    x = 275,594,293.15/21,637.50
  6. Step 6: Final answer
    x = 12,736.88

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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.