Home / 27,621.01-38,117.25-15,684.59

Finding the Fourth Proportional to 27,621.01, 38,117.25 and 15,684.59

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Solution

The fourth proportional to 27,621.01, 38,117.25 and 15,684.59 is: 21,644.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,621.01 : 38,117.25 = 15,684.59 : x
  2. Step 2: Convert to fraction form
    27,621.01/38,117.25 = 15,684.59/x
  3. Step 3: Cross multiply
    27,621.01x = 38,117.25 × 15,684.59
  4. Step 4: Simplify right side
    27,621.01x = 597,853,359.75
  5. Step 5: Solve for x
    x = 597,853,359.75/27,621.01
  6. Step 6: Final answer
    x = 21,644.88

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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.