Home / 45,332.92-67,976-20,351.56

Finding the Fourth Proportional to 45,332.92, 67,976 and 20,351.56

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Solution

The fourth proportional to 45,332.92, 67,976 and 20,351.56 is: 30,516.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,332.92 : 67,976 = 20,351.56 : x
  2. Step 2: Convert to fraction form
    45,332.92/67,976 = 20,351.56/x
  3. Step 3: Cross multiply
    45,332.92x = 67,976 × 20,351.56
  4. Step 4: Simplify right side
    45,332.92x = 1,383,417,642.56
  5. Step 5: Solve for x
    x = 1,383,417,642.56/45,332.92
  6. Step 6: Final answer
    x = 30,516.84

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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.