Home / 20,157.29-30,239.59-8,304.48

Finding the Fourth Proportional to 20,157.29, 30,239.59 and 8,304.48

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Solution

The fourth proportional to 20,157.29, 30,239.59 and 8,304.48 is: 12,458.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157.29 : 30,239.59 = 8,304.48 : x
  2. Step 2: Convert to fraction form
    20,157.29/30,239.59 = 8,304.48/x
  3. Step 3: Cross multiply
    20,157.29x = 30,239.59 × 8,304.48
  4. Step 4: Simplify right side
    20,157.29x = 251,123,989.30
  5. Step 5: Solve for x
    x = 251,123,989.30/20,157.29
  6. Step 6: Final answer
    x = 12,458.22

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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.