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Finding the Fourth Proportional to 28,909.71, 43,277.09 and 26,722.71

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Solution

The fourth proportional to 28,909.71, 43,277.09 and 26,722.71 is: 40,003.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,909.71 : 43,277.09 = 26,722.71 : x
  2. Step 2: Convert to fraction form
    28,909.71/43,277.09 = 26,722.71/x
  3. Step 3: Cross multiply
    28,909.71x = 43,277.09 × 26,722.71
  4. Step 4: Simplify right side
    28,909.71x = 1,156,480,992.10
  5. Step 5: Solve for x
    x = 1,156,480,992.10/28,909.71
  6. Step 6: Final answer
    x = 40,003.20

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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.