Home / 31,452.16-43,385.54-20,117.52

Finding the Fourth Proportional to 31,452.16, 43,385.54 and 20,117.52

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Solution

The fourth proportional to 31,452.16, 43,385.54 and 20,117.52 is: 27,750.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,452.16 : 43,385.54 = 20,117.52 : x
  2. Step 2: Convert to fraction form
    31,452.16/43,385.54 = 20,117.52/x
  3. Step 3: Cross multiply
    31,452.16x = 43,385.54 × 20,117.52
  4. Step 4: Simplify right side
    31,452.16x = 872,809,468.66
  5. Step 5: Solve for x
    x = 872,809,468.66/31,452.16
  6. Step 6: Final answer
    x = 27,750.38

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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.