Home / 21,715.14-32,577.50-12,359.57

Finding the Fourth Proportional to 21,715.14, 32,577.50 and 12,359.57

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Solution

The fourth proportional to 21,715.14, 32,577.50 and 12,359.57 is: 18,542.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,715.14 : 32,577.50 = 12,359.57 : x
  2. Step 2: Convert to fraction form
    21,715.14/32,577.50 = 12,359.57/x
  3. Step 3: Cross multiply
    21,715.14x = 32,577.50 × 12,359.57
  4. Step 4: Simplify right side
    21,715.14x = 402,643,666.99
  5. Step 5: Solve for x
    x = 402,643,666.99/21,715.14
  6. Step 6: Final answer
    x = 18,542.07

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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.