Home / 28,385.19-42,563.21-15,248.61

Finding the Fourth Proportional to 28,385.19, 42,563.21 and 15,248.61

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Solution

The fourth proportional to 28,385.19, 42,563.21 and 15,248.61 is: 22,865.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385.19 : 42,563.21 = 15,248.61 : x
  2. Step 2: Convert to fraction form
    28,385.19/42,563.21 = 15,248.61/x
  3. Step 3: Cross multiply
    28,385.19x = 42,563.21 × 15,248.61
  4. Step 4: Simplify right side
    28,385.19x = 649,029,713.40
  5. Step 5: Solve for x
    x = 649,029,713.40/28,385.19
  6. Step 6: Final answer
    x = 22,865.08

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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.