Home / 27,528.57-37,990.80-15,591.15

Finding the Fourth Proportional to 27,528.57, 37,990.80 and 15,591.15

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Solution

The fourth proportional to 27,528.57, 37,990.80 and 15,591.15 is: 21,516.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,528.57 : 37,990.80 = 15,591.15 : x
  2. Step 2: Convert to fraction form
    27,528.57/37,990.80 = 15,591.15/x
  3. Step 3: Cross multiply
    27,528.57x = 37,990.80 × 15,591.15
  4. Step 4: Simplify right side
    27,528.57x = 592,320,261.42
  5. Step 5: Solve for x
    x = 592,320,261.42/27,528.57
  6. Step 6: Final answer
    x = 21,516.56

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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.