Home / 31,438.82-43,385.70-17,292.56

Finding the Fourth Proportional to 31,438.82, 43,385.70 and 17,292.56

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Solution

The fourth proportional to 31,438.82, 43,385.70 and 17,292.56 is: 23,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,438.82 : 43,385.70 = 17,292.56 : x
  2. Step 2: Convert to fraction form
    31,438.82/43,385.70 = 17,292.56/x
  3. Step 3: Cross multiply
    31,438.82x = 43,385.70 × 17,292.56
  4. Step 4: Simplify right side
    31,438.82x = 750,249,820.39
  5. Step 5: Solve for x
    x = 750,249,820.39/31,438.82
  6. Step 6: Final answer
    x = 23,863.80

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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.