Home / 31,335.20-43,241.60-17,187.60

Finding the Fourth Proportional to 31,335.20, 43,241.60 and 17,187.60

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Solution

The fourth proportional to 31,335.20, 43,241.60 and 17,187.60 is: 23,718.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,335.20 : 43,241.60 = 17,187.60 : x
  2. Step 2: Convert to fraction form
    31,335.20/43,241.60 = 17,187.60/x
  3. Step 3: Cross multiply
    31,335.20x = 43,241.60 × 17,187.60
  4. Step 4: Simplify right side
    31,335.20x = 743,219,324.16
  5. Step 5: Solve for x
    x = 743,219,324.16/31,335.20
  6. Step 6: Final answer
    x = 23,718.35

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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.