Home / 31,854.03-43,922.44-20,353.75

Finding the Fourth Proportional to 31,854.03, 43,922.44 and 20,353.75

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Solution

The fourth proportional to 31,854.03, 43,922.44 and 20,353.75 is: 28,065.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,854.03 : 43,922.44 = 20,353.75 : x
  2. Step 2: Convert to fraction form
    31,854.03/43,922.44 = 20,353.75/x
  3. Step 3: Cross multiply
    31,854.03x = 43,922.44 × 20,353.75
  4. Step 4: Simplify right side
    31,854.03x = 893,986,363.15
  5. Step 5: Solve for x
    x = 893,986,363.15/31,854.03
  6. Step 6: Final answer
    x = 28,065.09

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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.