Home / 27,972-41,974.47-12,389.76

Finding the Fourth Proportional to 27,972, 41,974.47 and 12,389.76

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Solution

The fourth proportional to 27,972, 41,974.47 and 12,389.76 is: 18,591.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,972 : 41,974.47 = 12,389.76 : x
  2. Step 2: Convert to fraction form
    27,972/41,974.47 = 12,389.76/x
  3. Step 3: Cross multiply
    27,972x = 41,974.47 × 12,389.76
  4. Step 4: Simplify right side
    27,972x = 520,053,609.43
  5. Step 5: Solve for x
    x = 520,053,609.43/27,972
  6. Step 6: Final answer
    x = 18,591.94

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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.