Home / 20,954.38-31,436.28-6,164.49

Finding the Fourth Proportional to 20,954.38, 31,436.28 and 6,164.49

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Solution

The fourth proportional to 20,954.38, 31,436.28 and 6,164.49 is: 9,248.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.38 : 31,436.28 = 6,164.49 : x
  2. Step 2: Convert to fraction form
    20,954.38/31,436.28 = 6,164.49/x
  3. Step 3: Cross multiply
    20,954.38x = 31,436.28 × 6,164.49
  4. Step 4: Simplify right side
    20,954.38x = 193,788,633.70
  5. Step 5: Solve for x
    x = 193,788,633.70/20,954.38
  6. Step 6: Final answer
    x = 9,248.12

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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.