Home / 20,149.30-30,237.72-7,001.56

Finding the Fourth Proportional to 20,149.30, 30,237.72 and 7,001.56

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Solution

The fourth proportional to 20,149.30, 30,237.72 and 7,001.56 is: 10,507.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149.30 : 30,237.72 = 7,001.56 : x
  2. Step 2: Convert to fraction form
    20,149.30/30,237.72 = 7,001.56/x
  3. Step 3: Cross multiply
    20,149.30x = 30,237.72 × 7,001.56
  4. Step 4: Simplify right side
    20,149.30x = 211,711,210.84
  5. Step 5: Solve for x
    x = 211,711,210.84/20,149.30
  6. Step 6: Final answer
    x = 10,507.12

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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.