Home / 20,000.16-30,001.20-8,904.96

Finding the Fourth Proportional to 20,000.16, 30,001.20 and 8,904.96

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Solution

The fourth proportional to 20,000.16, 30,001.20 and 8,904.96 is: 13,357.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000.16 : 30,001.20 = 8,904.96 : x
  2. Step 2: Convert to fraction form
    20,000.16/30,001.20 = 8,904.96/x
  3. Step 3: Cross multiply
    20,000.16x = 30,001.20 × 8,904.96
  4. Step 4: Simplify right side
    20,000.16x = 267,159,485.95
  5. Step 5: Solve for x
    x = 267,159,485.95/20,000.16
  6. Step 6: Final answer
    x = 13,357.87

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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.