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Finding the Fourth Proportional to 27,888, 38,484.36 and 15,951.04

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Solution

The fourth proportional to 27,888, 38,484.36 and 15,951.04 is: 22,011.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,888 : 38,484.36 = 15,951.04 : x
  2. Step 2: Convert to fraction form
    27,888/38,484.36 = 15,951.04/x
  3. Step 3: Cross multiply
    27,888x = 38,484.36 × 15,951.04
  4. Step 4: Simplify right side
    27,888x = 613,865,565.73
  5. Step 5: Solve for x
    x = 613,865,565.73/27,888
  6. Step 6: Final answer
    x = 22,011.82

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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.