Home / 36,353.80-54,534.30-12,657.70

Finding the Fourth Proportional to 36,353.80, 54,534.30 and 12,657.70

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Solution

The fourth proportional to 36,353.80, 54,534.30 and 12,657.70 is: 18,987.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,353.80 : 54,534.30 = 12,657.70 : x
  2. Step 2: Convert to fraction form
    36,353.80/54,534.30 = 12,657.70/x
  3. Step 3: Cross multiply
    36,353.80x = 54,534.30 × 12,657.70
  4. Step 4: Simplify right side
    36,353.80x = 690,278,809.11
  5. Step 5: Solve for x
    x = 690,278,809.11/36,353.80
  6. Step 6: Final answer
    x = 18,987.80

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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.