Home / 38,949.64-53,755.68-21,957.10

Finding the Fourth Proportional to 38,949.64, 53,755.68 and 21,957.10

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Solution

The fourth proportional to 38,949.64, 53,755.68 and 21,957.10 is: 30,303.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,949.64 : 53,755.68 = 21,957.10 : x
  2. Step 2: Convert to fraction form
    38,949.64/53,755.68 = 21,957.10/x
  3. Step 3: Cross multiply
    38,949.64x = 53,755.68 × 21,957.10
  4. Step 4: Simplify right side
    38,949.64x = 1,180,318,841.33
  5. Step 5: Solve for x
    x = 1,180,318,841.33/38,949.64
  6. Step 6: Final answer
    x = 30,303.72

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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.