Home / 20,569.56-30,854.45-4,987.19

Finding the Fourth Proportional to 20,569.56, 30,854.45 and 4,987.19

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Solution

The fourth proportional to 20,569.56, 30,854.45 and 4,987.19 is: 7,480.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,569.56 : 30,854.45 = 4,987.19 : x
  2. Step 2: Convert to fraction form
    20,569.56/30,854.45 = 4,987.19/x
  3. Step 3: Cross multiply
    20,569.56x = 30,854.45 × 4,987.19
  4. Step 4: Simplify right side
    20,569.56x = 153,876,902.42
  5. Step 5: Solve for x
    x = 153,876,902.42/20,569.56
  6. Step 6: Final answer
    x = 7,480.81

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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.