Home / 27,640.89-38,143.85-16,882.07

Finding the Fourth Proportional to 27,640.89, 38,143.85 and 16,882.07

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Solution

The fourth proportional to 27,640.89, 38,143.85 and 16,882.07 is: 23,296.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,640.89 : 38,143.85 = 16,882.07 : x
  2. Step 2: Convert to fraction form
    27,640.89/38,143.85 = 16,882.07/x
  3. Step 3: Cross multiply
    27,640.89x = 38,143.85 × 16,882.07
  4. Step 4: Simplify right side
    27,640.89x = 643,946,870.64
  5. Step 5: Solve for x
    x = 643,946,870.64/27,640.89
  6. Step 6: Final answer
    x = 23,296.89

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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.