Home / 43,775.34-65,665.26-21,306.71

Finding the Fourth Proportional to 43,775.34, 65,665.26 and 21,306.71

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Solution

The fourth proportional to 43,775.34, 65,665.26 and 21,306.71 is: 31,961.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,775.34 : 65,665.26 = 21,306.71 : x
  2. Step 2: Convert to fraction form
    43,775.34/65,665.26 = 21,306.71/x
  3. Step 3: Cross multiply
    43,775.34x = 65,665.26 × 21,306.71
  4. Step 4: Simplify right side
    43,775.34x = 1,399,110,323.57
  5. Step 5: Solve for x
    x = 1,399,110,323.57/43,775.34
  6. Step 6: Final answer
    x = 31,961.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.