Home / 31,321.62-43,219.10-17,890.02

Finding the Fourth Proportional to 31,321.62, 43,219.10 and 17,890.02

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Solution

The fourth proportional to 31,321.62, 43,219.10 and 17,890.02 is: 24,685.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,321.62 : 43,219.10 = 17,890.02 : x
  2. Step 2: Convert to fraction form
    31,321.62/43,219.10 = 17,890.02/x
  3. Step 3: Cross multiply
    31,321.62x = 43,219.10 × 17,890.02
  4. Step 4: Simplify right side
    31,321.62x = 773,190,563.38
  5. Step 5: Solve for x
    x = 773,190,563.38/31,321.62
  6. Step 6: Final answer
    x = 24,685.52

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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.