Home / 31,695.83-43,740.09-17,160.02

Finding the Fourth Proportional to 31,695.83, 43,740.09 and 17,160.02

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Solution

The fourth proportional to 31,695.83, 43,740.09 and 17,160.02 is: 23,680.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,695.83 : 43,740.09 = 17,160.02 : x
  2. Step 2: Convert to fraction form
    31,695.83/43,740.09 = 17,160.02/x
  3. Step 3: Cross multiply
    31,695.83x = 43,740.09 × 17,160.02
  4. Step 4: Simplify right side
    31,695.83x = 750,580,992.90
  5. Step 5: Solve for x
    x = 750,580,992.90/31,695.83
  6. Step 6: Final answer
    x = 23,680.75

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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.