Home / 25,878.85-38,817.97-18,248.71

Finding the Fourth Proportional to 25,878.85, 38,817.97 and 18,248.71

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Solution

The fourth proportional to 25,878.85, 38,817.97 and 18,248.71 is: 27,372.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,878.85 : 38,817.97 = 18,248.71 : x
  2. Step 2: Convert to fraction form
    25,878.85/38,817.97 = 18,248.71/x
  3. Step 3: Cross multiply
    25,878.85x = 38,817.97 × 18,248.71
  4. Step 4: Simplify right side
    25,878.85x = 708,377,877.32
  5. Step 5: Solve for x
    x = 708,377,877.32/25,878.85
  6. Step 6: Final answer
    x = 27,372.85

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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.