Home / 31,247.25-43,123.10-17,821.09

Finding the Fourth Proportional to 31,247.25, 43,123.10 and 17,821.09

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Solution

The fourth proportional to 31,247.25, 43,123.10 and 17,821.09 is: 24,594.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,247.25 : 43,123.10 = 17,821.09 : x
  2. Step 2: Convert to fraction form
    31,247.25/43,123.10 = 17,821.09/x
  3. Step 3: Cross multiply
    31,247.25x = 43,123.10 × 17,821.09
  4. Step 4: Simplify right side
    31,247.25x = 768,500,646.18
  5. Step 5: Solve for x
    x = 768,500,646.18/31,247.25
  6. Step 6: Final answer
    x = 24,594.18

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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.