Home / 27,577.28-38,053.32-15,640.04

Finding the Fourth Proportional to 27,577.28, 38,053.32 and 15,640.04

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Solution

The fourth proportional to 27,577.28, 38,053.32 and 15,640.04 is: 21,581.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,577.28 : 38,053.32 = 15,640.04 : x
  2. Step 2: Convert to fraction form
    27,577.28/38,053.32 = 15,640.04/x
  3. Step 3: Cross multiply
    27,577.28x = 38,053.32 × 15,640.04
  4. Step 4: Simplify right side
    27,577.28x = 595,155,446.93
  5. Step 5: Solve for x
    x = 595,155,446.93/27,577.28
  6. Step 6: Final answer
    x = 21,581.37

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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.