Home / 36,189.12-54,221.37-28,288.56

Finding the Fourth Proportional to 36,189.12, 54,221.37 and 28,288.56

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Solution

The fourth proportional to 36,189.12, 54,221.37 and 28,288.56 is: 42,384.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,189.12 : 54,221.37 = 28,288.56 : x
  2. Step 2: Convert to fraction form
    36,189.12/54,221.37 = 28,288.56/x
  3. Step 3: Cross multiply
    36,189.12x = 54,221.37 × 28,288.56
  4. Step 4: Simplify right side
    36,189.12x = 1,533,844,478.53
  5. Step 5: Solve for x
    x = 1,533,844,478.53/36,189.12
  6. Step 6: Final answer
    x = 42,384.13

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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.