Home / 28,180.17-42,278.49-12,594.15

Finding the Fourth Proportional to 28,180.17, 42,278.49 and 12,594.15

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Solution

The fourth proportional to 28,180.17, 42,278.49 and 12,594.15 is: 18,894.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180.17 : 42,278.49 = 12,594.15 : x
  2. Step 2: Convert to fraction form
    28,180.17/42,278.49 = 12,594.15/x
  3. Step 3: Cross multiply
    28,180.17x = 42,278.49 × 12,594.15
  4. Step 4: Simplify right side
    28,180.17x = 532,461,644.83
  5. Step 5: Solve for x
    x = 532,461,644.83/28,180.17
  6. Step 6: Final answer
    x = 18,894.91

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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.