Home / 27,577.28-38,057.48-15,641.12

Finding the Fourth Proportional to 27,577.28, 38,057.48 and 15,641.12

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Solution

The fourth proportional to 27,577.28, 38,057.48 and 15,641.12 is: 21,585.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,577.28 : 38,057.48 = 15,641.12 : x
  2. Step 2: Convert to fraction form
    27,577.28/38,057.48 = 15,641.12/x
  3. Step 3: Cross multiply
    27,577.28x = 38,057.48 × 15,641.12
  4. Step 4: Simplify right side
    27,577.28x = 595,261,611.58
  5. Step 5: Solve for x
    x = 595,261,611.58/27,577.28
  6. Step 6: Final answer
    x = 21,585.22

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1.5x scale

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.