Home / 31,452.52-43,390.02-20,116.36

Finding the Fourth Proportional to 31,452.52, 43,390.02 and 20,116.36

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Solution

The fourth proportional to 31,452.52, 43,390.02 and 20,116.36 is: 27,751.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,452.52 : 43,390.02 = 20,116.36 : x
  2. Step 2: Convert to fraction form
    31,452.52/43,390.02 = 20,116.36/x
  3. Step 3: Cross multiply
    31,452.52x = 43,390.02 × 20,116.36
  4. Step 4: Simplify right side
    31,452.52x = 872,849,262.73
  5. Step 5: Solve for x
    x = 872,849,262.73/31,452.52
  6. Step 6: Final answer
    x = 27,751.33

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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.