Home / 28,141.11-38,834.28-15,393.96

Finding the Fourth Proportional to 28,141.11, 38,834.28 and 15,393.96

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Solution

The fourth proportional to 28,141.11, 38,834.28 and 15,393.96 is: 21,243.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,141.11 : 38,834.28 = 15,393.96 : x
  2. Step 2: Convert to fraction form
    28,141.11/38,834.28 = 15,393.96/x
  3. Step 3: Cross multiply
    28,141.11x = 38,834.28 × 15,393.96
  4. Step 4: Simplify right side
    28,141.11x = 597,813,352.95
  5. Step 5: Solve for x
    x = 597,813,352.95/28,141.11
  6. Step 6: Final answer
    x = 21,243.42

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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.