Home / 36,955.20-55,432.80-13,578.60

Finding the Fourth Proportional to 36,955.20, 55,432.80 and 13,578.60

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Solution

The fourth proportional to 36,955.20, 55,432.80 and 13,578.60 is: 20,367.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,955.20 : 55,432.80 = 13,578.60 : x
  2. Step 2: Convert to fraction form
    36,955.20/55,432.80 = 13,578.60/x
  3. Step 3: Cross multiply
    36,955.20x = 55,432.80 × 13,578.60
  4. Step 4: Simplify right side
    36,955.20x = 752,699,818.08
  5. Step 5: Solve for x
    x = 752,699,818.08/36,955.20
  6. Step 6: Final answer
    x = 20,367.90

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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.