Home / 31,319.04-43,221.10-17,894.61

Finding the Fourth Proportional to 31,319.04, 43,221.10 and 17,894.61

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Solution

The fourth proportional to 31,319.04, 43,221.10 and 17,894.61 is: 24,695.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,319.04 : 43,221.10 = 17,894.61 : x
  2. Step 2: Convert to fraction form
    31,319.04/43,221.10 = 17,894.61/x
  3. Step 3: Cross multiply
    31,319.04x = 43,221.10 × 17,894.61
  4. Step 4: Simplify right side
    31,319.04x = 773,424,942.40
  5. Step 5: Solve for x
    x = 773,424,942.40/31,319.04
  6. Step 6: Final answer
    x = 24,695.04

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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.