Home / 31,247.07-43,120.15-18,500.41

Finding the Fourth Proportional to 31,247.07, 43,120.15 and 18,500.41

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Solution

The fourth proportional to 31,247.07, 43,120.15 and 18,500.41 is: 25,530.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,247.07 : 43,120.15 = 18,500.41 : x
  2. Step 2: Convert to fraction form
    31,247.07/43,120.15 = 18,500.41/x
  3. Step 3: Cross multiply
    31,247.07x = 43,120.15 × 18,500.41
  4. Step 4: Simplify right side
    31,247.07x = 797,740,454.26
  5. Step 5: Solve for x
    x = 797,740,454.26/31,247.07
  6. Step 6: Final answer
    x = 25,530.09

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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.