Home / 21,562.20-32,343.30-15,730.20

Finding the Fourth Proportional to 21,562.20, 32,343.30 and 15,730.20

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Solution

The fourth proportional to 21,562.20, 32,343.30 and 15,730.20 is: 23,595.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,562.20 : 32,343.30 = 15,730.20 : x
  2. Step 2: Convert to fraction form
    21,562.20/32,343.30 = 15,730.20/x
  3. Step 3: Cross multiply
    21,562.20x = 32,343.30 × 15,730.20
  4. Step 4: Simplify right side
    21,562.20x = 508,766,577.66
  5. Step 5: Solve for x
    x = 508,766,577.66/21,562.20
  6. Step 6: Final answer
    x = 23,595.30

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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.