Home / 20,230.47-30,346.01-7,751.13

Finding the Fourth Proportional to 20,230.47, 30,346.01 and 7,751.13

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Solution

The fourth proportional to 20,230.47, 30,346.01 and 7,751.13 is: 11,626.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.47 : 30,346.01 = 7,751.13 : x
  2. Step 2: Convert to fraction form
    20,230.47/30,346.01 = 7,751.13/x
  3. Step 3: Cross multiply
    20,230.47x = 30,346.01 × 7,751.13
  4. Step 4: Simplify right side
    20,230.47x = 235,215,829.74
  5. Step 5: Solve for x
    x = 235,215,829.74/20,230.47
  6. Step 6: Final answer
    x = 11,626.81

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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.