Home / 28,223.11-42,360.04-15,086.71

Finding the Fourth Proportional to 28,223.11, 42,360.04 and 15,086.71

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Solution

The fourth proportional to 28,223.11, 42,360.04 and 15,086.71 is: 22,643.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,223.11 : 42,360.04 = 15,086.71 : x
  2. Step 2: Convert to fraction form
    28,223.11/42,360.04 = 15,086.71/x
  3. Step 3: Cross multiply
    28,223.11x = 42,360.04 × 15,086.71
  4. Step 4: Simplify right side
    28,223.11x = 639,073,427.27
  5. Step 5: Solve for x
    x = 639,073,427.27/28,223.11
  6. Step 6: Final answer
    x = 22,643.63

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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.