Home / 28,084.24-38,754.30-15,508

Finding the Fourth Proportional to 28,084.24, 38,754.30 and 15,508

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Solution

The fourth proportional to 28,084.24, 38,754.30 and 15,508 is: 21,399.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,084.24 : 38,754.30 = 15,508 : x
  2. Step 2: Convert to fraction form
    28,084.24/38,754.30 = 15,508/x
  3. Step 3: Cross multiply
    28,084.24x = 38,754.30 × 15,508
  4. Step 4: Simplify right side
    28,084.24x = 601,001,684.40
  5. Step 5: Solve for x
    x = 601,001,684.40/28,084.24
  6. Step 6: Final answer
    x = 21,399.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.