Home / 38,389.20-57,579.48-28,543.20

Finding the Fourth Proportional to 38,389.20, 57,579.48 and 28,543.20

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Solution

The fourth proportional to 38,389.20, 57,579.48 and 28,543.20 is: 42,811.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,389.20 : 57,579.48 = 28,543.20 : x
  2. Step 2: Convert to fraction form
    38,389.20/57,579.48 = 28,543.20/x
  3. Step 3: Cross multiply
    38,389.20x = 57,579.48 × 28,543.20
  4. Step 4: Simplify right side
    38,389.20x = 1,643,502,613.54
  5. Step 5: Solve for x
    x = 1,643,502,613.54/38,389.20
  6. Step 6: Final answer
    x = 42,811.59

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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.