Home / 36,281.80-54,449.70-18,742.60

Finding the Fourth Proportional to 36,281.80, 54,449.70 and 18,742.60

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Solution

The fourth proportional to 36,281.80, 54,449.70 and 18,742.60 is: 28,127.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,281.80 : 54,449.70 = 18,742.60 : x
  2. Step 2: Convert to fraction form
    36,281.80/54,449.70 = 18,742.60/x
  3. Step 3: Cross multiply
    36,281.80x = 54,449.70 × 18,742.60
  4. Step 4: Simplify right side
    36,281.80x = 1,020,528,947.22
  5. Step 5: Solve for x
    x = 1,020,528,947.22/36,281.80
  6. Step 6: Final answer
    x = 28,127.85

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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.