Home / 28,640.22-42,934.40-10,167.90

Finding the Fourth Proportional to 28,640.22, 42,934.40 and 10,167.90

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Solution

The fourth proportional to 28,640.22, 42,934.40 and 10,167.90 is: 15,242.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,640.22 : 42,934.40 = 10,167.90 : x
  2. Step 2: Convert to fraction form
    28,640.22/42,934.40 = 10,167.90/x
  3. Step 3: Cross multiply
    28,640.22x = 42,934.40 × 10,167.90
  4. Step 4: Simplify right side
    28,640.22x = 436,552,685.76
  5. Step 5: Solve for x
    x = 436,552,685.76/28,640.22
  6. Step 6: Final answer
    x = 15,242.64

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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.