Home / 20,117.53-30,177.65-5,326.26

Finding the Fourth Proportional to 20,117.53, 30,177.65 and 5,326.26

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Solution

The fourth proportional to 20,117.53, 30,177.65 and 5,326.26 is: 7,989.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.53 : 30,177.65 = 5,326.26 : x
  2. Step 2: Convert to fraction form
    20,117.53/30,177.65 = 5,326.26/x
  3. Step 3: Cross multiply
    20,117.53x = 30,177.65 × 5,326.26
  4. Step 4: Simplify right side
    20,117.53x = 160,734,010.09
  5. Step 5: Solve for x
    x = 160,734,010.09/20,117.53
  6. Step 6: Final answer
    x = 7,989.75

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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.