Home / 31,392.60-43,320.84-17,965.20

Finding the Fourth Proportional to 31,392.60, 43,320.84 and 17,965.20

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Solution

The fourth proportional to 31,392.60, 43,320.84 and 17,965.20 is: 24,791.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,392.60 : 43,320.84 = 17,965.20 : x
  2. Step 2: Convert to fraction form
    31,392.60/43,320.84 = 17,965.20/x
  3. Step 3: Cross multiply
    31,392.60x = 43,320.84 × 17,965.20
  4. Step 4: Simplify right side
    31,392.60x = 778,267,554.77
  5. Step 5: Solve for x
    x = 778,267,554.77/31,392.60
  6. Step 6: Final answer
    x = 24,791.43

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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.