Home / 27,913.18-38,519.90-15,337.66

Finding the Fourth Proportional to 27,913.18, 38,519.90 and 15,337.66

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Solution

The fourth proportional to 27,913.18, 38,519.90 and 15,337.66 is: 21,165.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,913.18 : 38,519.90 = 15,337.66 : x
  2. Step 2: Convert to fraction form
    27,913.18/38,519.90 = 15,337.66/x
  3. Step 3: Cross multiply
    27,913.18x = 38,519.90 × 15,337.66
  4. Step 4: Simplify right side
    27,913.18x = 590,805,129.43
  5. Step 5: Solve for x
    x = 590,805,129.43/27,913.18
  6. Step 6: Final answer
    x = 21,165.81

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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.