Home / 31,177.44-42,992.01-28,649.43

Finding the Fourth Proportional to 31,177.44, 42,992.01 and 28,649.43

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Solution

The fourth proportional to 31,177.44, 42,992.01 and 28,649.43 is: 39,506.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,177.44 : 42,992.01 = 28,649.43 : x
  2. Step 2: Convert to fraction form
    31,177.44/42,992.01 = 28,649.43/x
  3. Step 3: Cross multiply
    31,177.44x = 42,992.01 × 28,649.43
  4. Step 4: Simplify right side
    31,177.44x = 1,231,696,581.05
  5. Step 5: Solve for x
    x = 1,231,696,581.05/31,177.44
  6. Step 6: Final answer
    x = 39,506.02

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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.