Home / 43,902.41-65,868.39-13,921.54

Finding the Fourth Proportional to 43,902.41, 65,868.39 and 13,921.54

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Solution

The fourth proportional to 43,902.41, 65,868.39 and 13,921.54 is: 20,886.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,902.41 : 65,868.39 = 13,921.54 : x
  2. Step 2: Convert to fraction form
    43,902.41/65,868.39 = 13,921.54/x
  3. Step 3: Cross multiply
    43,902.41x = 65,868.39 × 13,921.54
  4. Step 4: Simplify right side
    43,902.41x = 916,989,261.45
  5. Step 5: Solve for x
    x = 916,989,261.45/43,902.41
  6. Step 6: Final answer
    x = 20,886.99

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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.