Home / 43,572.90-65,353.18-13,986.84

Finding the Fourth Proportional to 43,572.90, 65,353.18 and 13,986.84

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Solution

The fourth proportional to 43,572.90, 65,353.18 and 13,986.84 is: 20,978.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,572.90 : 65,353.18 = 13,986.84 : x
  2. Step 2: Convert to fraction form
    43,572.90/65,353.18 = 13,986.84/x
  3. Step 3: Cross multiply
    43,572.90x = 65,353.18 × 13,986.84
  4. Step 4: Simplify right side
    43,572.90x = 914,084,472.15
  5. Step 5: Solve for x
    x = 914,084,472.15/43,572.90
  6. Step 6: Final answer
    x = 20,978.28

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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.