Home / 40,100.65-55,337.38-21,951.79

Finding the Fourth Proportional to 40,100.65, 55,337.38 and 21,951.79

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Solution

The fourth proportional to 40,100.65, 55,337.38 and 21,951.79 is: 30,292.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,100.65 : 55,337.38 = 21,951.79 : x
  2. Step 2: Convert to fraction form
    40,100.65/55,337.38 = 21,951.79/x
  3. Step 3: Cross multiply
    40,100.65x = 55,337.38 × 21,951.79
  4. Step 4: Simplify right side
    40,100.65x = 1,214,754,544.91
  5. Step 5: Solve for x
    x = 1,214,754,544.91/40,100.65
  6. Step 6: Final answer
    x = 30,292.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.