Home / 31,215.58-43,078.86-17,608.20

Finding the Fourth Proportional to 31,215.58, 43,078.86 and 17,608.20

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Solution

The fourth proportional to 31,215.58, 43,078.86 and 17,608.20 is: 24,300.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215.58 : 43,078.86 = 17,608.20 : x
  2. Step 2: Convert to fraction form
    31,215.58/43,078.86 = 17,608.20/x
  3. Step 3: Cross multiply
    31,215.58x = 43,078.86 × 17,608.20
  4. Step 4: Simplify right side
    31,215.58x = 758,541,182.65
  5. Step 5: Solve for x
    x = 758,541,182.65/31,215.58
  6. Step 6: Final answer
    x = 24,300.08

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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.