Home / 31,329.70-43,235.10-18,754.44

Finding the Fourth Proportional to 31,329.70, 43,235.10 and 18,754.44

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Solution

The fourth proportional to 31,329.70, 43,235.10 and 18,754.44 is: 25,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,329.70 : 43,235.10 = 18,754.44 : x
  2. Step 2: Convert to fraction form
    31,329.70/43,235.10 = 18,754.44/x
  3. Step 3: Cross multiply
    31,329.70x = 43,235.10 × 18,754.44
  4. Step 4: Simplify right side
    31,329.70x = 810,850,088.84
  5. Step 5: Solve for x
    x = 810,850,088.84/31,329.70
  6. Step 6: Final answer
    x = 25,881.20

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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.