Home / 21,382.97-32,080.91-15,155.01

Finding the Fourth Proportional to 21,382.97, 32,080.91 and 15,155.01

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Solution

The fourth proportional to 21,382.97, 32,080.91 and 15,155.01 is: 22,737.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,382.97 : 32,080.91 = 15,155.01 : x
  2. Step 2: Convert to fraction form
    21,382.97/32,080.91 = 15,155.01/x
  3. Step 3: Cross multiply
    21,382.97x = 32,080.91 × 15,155.01
  4. Step 4: Simplify right side
    21,382.97x = 486,186,436.08
  5. Step 5: Solve for x
    x = 486,186,436.08/21,382.97
  6. Step 6: Final answer
    x = 22,737.09

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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.