Home / 42,640.06-63,974.85-14,579.87

Finding the Fourth Proportional to 42,640.06, 63,974.85 and 14,579.87

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Solution

The fourth proportional to 42,640.06, 63,974.85 and 14,579.87 is: 21,874.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,640.06 : 63,974.85 = 14,579.87 : x
  2. Step 2: Convert to fraction form
    42,640.06/63,974.85 = 14,579.87/x
  3. Step 3: Cross multiply
    42,640.06x = 63,974.85 × 14,579.87
  4. Step 4: Simplify right side
    42,640.06x = 932,744,603.50
  5. Step 5: Solve for x
    x = 932,744,603.50/42,640.06
  6. Step 6: Final answer
    x = 21,874.84

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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.