Home / 31,348.92-43,261.51-17,920.47

Finding the Fourth Proportional to 31,348.92, 43,261.51 and 17,920.47

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Solution

The fourth proportional to 31,348.92, 43,261.51 and 17,920.47 is: 24,730.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,348.92 : 43,261.51 = 17,920.47 : x
  2. Step 2: Convert to fraction form
    31,348.92/43,261.51 = 17,920.47/x
  3. Step 3: Cross multiply
    31,348.92x = 43,261.51 × 17,920.47
  4. Step 4: Simplify right side
    31,348.92x = 775,266,592.11
  5. Step 5: Solve for x
    x = 775,266,592.11/31,348.92
  6. Step 6: Final answer
    x = 24,730.25

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Double scale
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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.