Home / 37,428.92-51,649.71-20,429.79

Finding the Fourth Proportional to 37,428.92, 51,649.71 and 20,429.79

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Solution

The fourth proportional to 37,428.92, 51,649.71 and 20,429.79 is: 28,191.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,428.92 : 51,649.71 = 20,429.79 : x
  2. Step 2: Convert to fraction form
    37,428.92/51,649.71 = 20,429.79/x
  3. Step 3: Cross multiply
    37,428.92x = 51,649.71 × 20,429.79
  4. Step 4: Simplify right side
    37,428.92x = 1,055,192,728.86
  5. Step 5: Solve for x
    x = 1,055,192,728.86/37,428.92
  6. Step 6: Final answer
    x = 28,191.91

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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.