Home / 20,343.18-30,362.25-19,014.58

Finding the Fourth Proportional to 20,343.18, 30,362.25 and 19,014.58

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Solution

The fourth proportional to 20,343.18, 30,362.25 and 19,014.58 is: 28,379.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,343.18 : 30,362.25 = 19,014.58 : x
  2. Step 2: Convert to fraction form
    20,343.18/30,362.25 = 19,014.58/x
  3. Step 3: Cross multiply
    20,343.18x = 30,362.25 × 19,014.58
  4. Step 4: Simplify right side
    20,343.18x = 577,325,540.86
  5. Step 5: Solve for x
    x = 577,325,540.86/20,343.18
  6. Step 6: Final answer
    x = 28,379.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.