Home / 21,572.02-32,358.12-12,814.30

Finding the Fourth Proportional to 21,572.02, 32,358.12 and 12,814.30

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Solution

The fourth proportional to 21,572.02, 32,358.12 and 12,814.30 is: 19,221.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,572.02 : 32,358.12 = 12,814.30 : x
  2. Step 2: Convert to fraction form
    21,572.02/32,358.12 = 12,814.30/x
  3. Step 3: Cross multiply
    21,572.02x = 32,358.12 × 12,814.30
  4. Step 4: Simplify right side
    21,572.02x = 414,646,657.12
  5. Step 5: Solve for x
    x = 414,646,657.12/21,572.02
  6. Step 6: Final answer
    x = 19,221.50

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Similar ratio
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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.