Home / 18,787.92-28,158.30-16,442.34

Finding the Fourth Proportional to 18,787.92, 28,158.30 and 16,442.34

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Solution

The fourth proportional to 18,787.92, 28,158.30 and 16,442.34 is: 24,642.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.92 : 28,158.30 = 16,442.34 : x
  2. Step 2: Convert to fraction form
    18,787.92/28,158.30 = 16,442.34/x
  3. Step 3: Cross multiply
    18,787.92x = 28,158.30 × 16,442.34
  4. Step 4: Simplify right side
    18,787.92x = 462,988,342.42
  5. Step 5: Solve for x
    x = 462,988,342.42/18,787.92
  6. Step 6: Final answer
    x = 24,642.87

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1.5x scale

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.