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Finding the Fourth Proportional to 28,414.80, 42,622.20 and 26,341.20

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Solution

The fourth proportional to 28,414.80, 42,622.20 and 26,341.20 is: 39,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,414.80 : 42,622.20 = 26,341.20 : x
  2. Step 2: Convert to fraction form
    28,414.80/42,622.20 = 26,341.20/x
  3. Step 3: Cross multiply
    28,414.80x = 42,622.20 × 26,341.20
  4. Step 4: Simplify right side
    28,414.80x = 1,122,719,894.64
  5. Step 5: Solve for x
    x = 1,122,719,894.64/28,414.80
  6. Step 6: Final answer
    x = 39,511.80

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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.