Home / 27,972.48-41,934.96-12,381.60

Finding the Fourth Proportional to 27,972.48, 41,934.96 and 12,381.60

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Solution

The fourth proportional to 27,972.48, 41,934.96 and 12,381.60 is: 18,561.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,972.48 : 41,934.96 = 12,381.60 : x
  2. Step 2: Convert to fraction form
    27,972.48/41,934.96 = 12,381.60/x
  3. Step 3: Cross multiply
    27,972.48x = 41,934.96 × 12,381.60
  4. Step 4: Simplify right side
    27,972.48x = 519,221,900.74
  5. Step 5: Solve for x
    x = 519,221,900.74/27,972.48
  6. Step 6: Final answer
    x = 18,561.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.