Home / 21,715.46-32,577.96-12,359.88

Finding the Fourth Proportional to 21,715.46, 32,577.96 and 12,359.88

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Solution

The fourth proportional to 21,715.46, 32,577.96 and 12,359.88 is: 18,542.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,715.46 : 32,577.96 = 12,359.88 : x
  2. Step 2: Convert to fraction form
    21,715.46/32,577.96 = 12,359.88/x
  3. Step 3: Cross multiply
    21,715.46x = 32,577.96 × 12,359.88
  4. Step 4: Simplify right side
    21,715.46x = 402,659,513.36
  5. Step 5: Solve for x
    x = 402,659,513.36/21,715.46
  6. Step 6: Final answer
    x = 18,542.53

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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.