Home / 28,316.30-42,469.50-10,787.18

Finding the Fourth Proportional to 28,316.30, 42,469.50 and 10,787.18

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Solution

The fourth proportional to 28,316.30, 42,469.50 and 10,787.18 is: 16,178.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,316.30 : 42,469.50 = 10,787.18 : x
  2. Step 2: Convert to fraction form
    28,316.30/42,469.50 = 10,787.18/x
  3. Step 3: Cross multiply
    28,316.30x = 42,469.50 × 10,787.18
  4. Step 4: Simplify right side
    28,316.30x = 458,126,141.01
  5. Step 5: Solve for x
    x = 458,126,141.01/28,316.30
  6. Step 6: Final answer
    x = 16,178.88

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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.