Home / 28,156.54-42,176.31-13,377.10

Finding the Fourth Proportional to 28,156.54, 42,176.31 and 13,377.10

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Solution

The fourth proportional to 28,156.54, 42,176.31 and 13,377.10 is: 20,037.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156.54 : 42,176.31 = 13,377.10 : x
  2. Step 2: Convert to fraction form
    28,156.54/42,176.31 = 13,377.10/x
  3. Step 3: Cross multiply
    28,156.54x = 42,176.31 × 13,377.10
  4. Step 4: Simplify right side
    28,156.54x = 564,196,716.50
  5. Step 5: Solve for x
    x = 564,196,716.50/28,156.54
  6. Step 6: Final answer
    x = 20,037.86

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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.