Home / 27,864.01-38,451.67-15,431.74

Finding the Fourth Proportional to 27,864.01, 38,451.67 and 15,431.74

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Solution

The fourth proportional to 27,864.01, 38,451.67 and 15,431.74 is: 21,295.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,864.01 : 38,451.67 = 15,431.74 : x
  2. Step 2: Convert to fraction form
    27,864.01/38,451.67 = 15,431.74/x
  3. Step 3: Cross multiply
    27,864.01x = 38,451.67 × 15,431.74
  4. Step 4: Simplify right side
    27,864.01x = 593,376,377.61
  5. Step 5: Solve for x
    x = 593,376,377.61/27,864.01
  6. Step 6: Final answer
    x = 21,295.44

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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.