Home / 28,648.59-42,972.72-15,583.99

Finding the Fourth Proportional to 28,648.59, 42,972.72 and 15,583.99

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Solution

The fourth proportional to 28,648.59, 42,972.72 and 15,583.99 is: 23,375.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,648.59 : 42,972.72 = 15,583.99 : x
  2. Step 2: Convert to fraction form
    28,648.59/42,972.72 = 15,583.99/x
  3. Step 3: Cross multiply
    28,648.59x = 42,972.72 × 15,583.99
  4. Step 4: Simplify right side
    28,648.59x = 669,686,438.75
  5. Step 5: Solve for x
    x = 669,686,438.75/28,648.59
  6. Step 6: Final answer
    x = 23,375.90

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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.