Home / 27,655.25-38,167.52-15,720.38

Finding the Fourth Proportional to 27,655.25, 38,167.52 and 15,720.38

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Solution

The fourth proportional to 27,655.25, 38,167.52 and 15,720.38 is: 21,695.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,655.25 : 38,167.52 = 15,720.38 : x
  2. Step 2: Convert to fraction form
    27,655.25/38,167.52 = 15,720.38/x
  3. Step 3: Cross multiply
    27,655.25x = 38,167.52 × 15,720.38
  4. Step 4: Simplify right side
    27,655.25x = 600,007,727.22
  5. Step 5: Solve for x
    x = 600,007,727.22/27,655.25
  6. Step 6: Final answer
    x = 21,695.98

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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.