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Finding the Fourth Proportional to 27,827.50, 38,401.95 and 15,251.98

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Solution

The fourth proportional to 27,827.50, 38,401.95 and 15,251.98 is: 21,047.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,827.50 : 38,401.95 = 15,251.98 : x
  2. Step 2: Convert to fraction form
    27,827.50/38,401.95 = 15,251.98/x
  3. Step 3: Cross multiply
    27,827.50x = 38,401.95 × 15,251.98
  4. Step 4: Simplify right side
    27,827.50x = 585,705,773.36
  5. Step 5: Solve for x
    x = 585,705,773.36/27,827.50
  6. Step 6: Final answer
    x = 21,047.73

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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.