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Finding the Fourth Proportional to 28,998.55, 43,504.20 and 9,279.10

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Solution

The fourth proportional to 28,998.55, 43,504.20 and 9,279.10 is: 13,920.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,998.55 : 43,504.20 = 9,279.10 : x
  2. Step 2: Convert to fraction form
    28,998.55/43,504.20 = 9,279.10/x
  3. Step 3: Cross multiply
    28,998.55x = 43,504.20 × 9,279.10
  4. Step 4: Simplify right side
    28,998.55x = 403,679,713.46
  5. Step 5: Solve for x
    x = 403,679,713.46/28,998.55
  6. Step 6: Final answer
    x = 13,920.69

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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.