Home / 35,279.89-48,693.78-21,140.95

Finding the Fourth Proportional to 35,279.89, 48,693.78 and 21,140.95

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Solution

The fourth proportional to 35,279.89, 48,693.78 and 21,140.95 is: 29,179.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,279.89 : 48,693.78 = 21,140.95 : x
  2. Step 2: Convert to fraction form
    35,279.89/48,693.78 = 21,140.95/x
  3. Step 3: Cross multiply
    35,279.89x = 48,693.78 × 21,140.95
  4. Step 4: Simplify right side
    35,279.89x = 1,029,432,768.29
  5. Step 5: Solve for x
    x = 1,029,432,768.29/35,279.89
  6. Step 6: Final answer
    x = 29,179.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.