Home / 22,269.40-30,717.28-15,013.68

Finding the Fourth Proportional to 22,269.40, 30,717.28 and 15,013.68

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Solution

The fourth proportional to 22,269.40, 30,717.28 and 15,013.68 is: 20,709.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,269.40 : 30,717.28 = 15,013.68 : x
  2. Step 2: Convert to fraction form
    22,269.40/30,717.28 = 15,013.68/x
  3. Step 3: Cross multiply
    22,269.40x = 30,717.28 × 15,013.68
  4. Step 4: Simplify right side
    22,269.40x = 461,179,412.39
  5. Step 5: Solve for x
    x = 461,179,412.39/22,269.40
  6. Step 6: Final answer
    x = 20,709.11

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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.