Home / 28,344.24-42,516-12,750.84

Finding the Fourth Proportional to 28,344.24, 42,516 and 12,750.84

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Solution

The fourth proportional to 28,344.24, 42,516 and 12,750.84 is: 19,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,344.24 : 42,516 = 12,750.84 : x
  2. Step 2: Convert to fraction form
    28,344.24/42,516 = 12,750.84/x
  3. Step 3: Cross multiply
    28,344.24x = 42,516 × 12,750.84
  4. Step 4: Simplify right side
    28,344.24x = 542,114,713.44
  5. Step 5: Solve for x
    x = 542,114,713.44/28,344.24
  6. Step 6: Final answer
    x = 19,126.10

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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.