Home / 20,042.72-30,066.80-8,353.20

Finding the Fourth Proportional to 20,042.72, 30,066.80 and 8,353.20

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Solution

The fourth proportional to 20,042.72, 30,066.80 and 8,353.20 is: 12,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.72 : 30,066.80 = 8,353.20 : x
  2. Step 2: Convert to fraction form
    20,042.72/30,066.80 = 8,353.20/x
  3. Step 3: Cross multiply
    20,042.72x = 30,066.80 × 8,353.20
  4. Step 4: Simplify right side
    20,042.72x = 251,153,993.76
  5. Step 5: Solve for x
    x = 251,153,993.76/20,042.72
  6. Step 6: Final answer
    x = 12,530.93

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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.