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Finding the Fourth Proportional to 32,290.98, 48,427.80 and 8,918.70

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Solution

The fourth proportional to 32,290.98, 48,427.80 and 8,918.70 is: 13,375.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,290.98 : 48,427.80 = 8,918.70 : x
  2. Step 2: Convert to fraction form
    32,290.98/48,427.80 = 8,918.70/x
  3. Step 3: Cross multiply
    32,290.98x = 48,427.80 × 8,918.70
  4. Step 4: Simplify right side
    32,290.98x = 431,913,019.86
  5. Step 5: Solve for x
    x = 431,913,019.86/32,290.98
  6. Step 6: Final answer
    x = 13,375.66

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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.