Home / 31,378.62-43,302.50-17,038.38

Finding the Fourth Proportional to 31,378.62, 43,302.50 and 17,038.38

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Solution

The fourth proportional to 31,378.62, 43,302.50 and 17,038.38 is: 23,512.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378.62 : 43,302.50 = 17,038.38 : x
  2. Step 2: Convert to fraction form
    31,378.62/43,302.50 = 17,038.38/x
  3. Step 3: Cross multiply
    31,378.62x = 43,302.50 × 17,038.38
  4. Step 4: Simplify right side
    31,378.62x = 737,804,591.04
  5. Step 5: Solve for x
    x = 737,804,591.04/31,378.62
  6. Step 6: Final answer
    x = 23,512.97

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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.