Home / 31,882.40-43,999.34-18,454.22

Finding the Fourth Proportional to 31,882.40, 43,999.34 and 18,454.22

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Solution

The fourth proportional to 31,882.40, 43,999.34 and 18,454.22 is: 25,467.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,882.40 : 43,999.34 = 18,454.22 : x
  2. Step 2: Convert to fraction form
    31,882.40/43,999.34 = 18,454.22/x
  3. Step 3: Cross multiply
    31,882.40x = 43,999.34 × 18,454.22
  4. Step 4: Simplify right side
    31,882.40x = 811,973,500.21
  5. Step 5: Solve for x
    x = 811,973,500.21/31,882.40
  6. Step 6: Final answer
    x = 25,467.77

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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.