Home / 43,902.66-65,868.77-13,921.80

Finding the Fourth Proportional to 43,902.66, 65,868.77 and 13,921.80

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Solution

The fourth proportional to 43,902.66, 65,868.77 and 13,921.80 is: 20,887.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,902.66 : 65,868.77 = 13,921.80 : x
  2. Step 2: Convert to fraction form
    43,902.66/65,868.77 = 13,921.80/x
  3. Step 3: Cross multiply
    43,902.66x = 65,868.77 × 13,921.80
  4. Step 4: Simplify right side
    43,902.66x = 917,011,443.23
  5. Step 5: Solve for x
    x = 917,011,443.23/43,902.66
  6. Step 6: Final answer
    x = 20,887.38

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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.