Home / 20,301.14-28,013.28-11,348.35

Finding the Fourth Proportional to 20,301.14, 28,013.28 and 11,348.35

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Solution

The fourth proportional to 20,301.14, 28,013.28 and 11,348.35 is: 15,659.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.14 : 28,013.28 = 11,348.35 : x
  2. Step 2: Convert to fraction form
    20,301.14/28,013.28 = 11,348.35/x
  3. Step 3: Cross multiply
    20,301.14x = 28,013.28 × 11,348.35
  4. Step 4: Simplify right side
    20,301.14x = 317,904,436.05
  5. Step 5: Solve for x
    x = 317,904,436.05/20,301.14
  6. Step 6: Final answer
    x = 15,659.44

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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.