Home / 31,238.92-43,110.84-17,812.36

Finding the Fourth Proportional to 31,238.92, 43,110.84 and 17,812.36

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Solution

The fourth proportional to 31,238.92, 43,110.84 and 17,812.36 is: 24,581.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,238.92 : 43,110.84 = 17,812.36 : x
  2. Step 2: Convert to fraction form
    31,238.92/43,110.84 = 17,812.36/x
  3. Step 3: Cross multiply
    31,238.92x = 43,110.84 × 17,812.36
  4. Step 4: Simplify right side
    31,238.92x = 767,905,801.98
  5. Step 5: Solve for x
    x = 767,905,801.98/31,238.92
  6. Step 6: Final answer
    x = 24,581.70

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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.