Home / 20,247.35-27,960.59-15,523.43

Finding the Fourth Proportional to 20,247.35, 27,960.59 and 15,523.43

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Solution

The fourth proportional to 20,247.35, 27,960.59 and 15,523.43 is: 21,437.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.35 : 27,960.59 = 15,523.43 : x
  2. Step 2: Convert to fraction form
    20,247.35/27,960.59 = 15,523.43/x
  3. Step 3: Cross multiply
    20,247.35x = 27,960.59 × 15,523.43
  4. Step 4: Simplify right side
    20,247.35x = 434,044,044.20
  5. Step 5: Solve for x
    x = 434,044,044.20/20,247.35
  6. Step 6: Final answer
    x = 21,437.08

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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.