Home / 43,445.59-65,171.34-13,865.65

Finding the Fourth Proportional to 43,445.59, 65,171.34 and 13,865.65

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Solution

The fourth proportional to 43,445.59, 65,171.34 and 13,865.65 is: 20,799.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,445.59 : 65,171.34 = 13,865.65 : x
  2. Step 2: Convert to fraction form
    43,445.59/65,171.34 = 13,865.65/x
  3. Step 3: Cross multiply
    43,445.59x = 65,171.34 × 13,865.65
  4. Step 4: Simplify right side
    43,445.59x = 903,643,354.02
  5. Step 5: Solve for x
    x = 903,643,354.02/43,445.59
  6. Step 6: Final answer
    x = 20,799.43

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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.