Home / 43,523.28-65,278.44-13,938.12

Finding the Fourth Proportional to 43,523.28, 65,278.44 and 13,938.12

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Solution

The fourth proportional to 43,523.28, 65,278.44 and 13,938.12 is: 20,905.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,523.28 : 65,278.44 = 13,938.12 : x
  2. Step 2: Convert to fraction form
    43,523.28/65,278.44 = 13,938.12/x
  3. Step 3: Cross multiply
    43,523.28x = 65,278.44 × 13,938.12
  4. Step 4: Simplify right side
    43,523.28x = 909,858,730.13
  5. Step 5: Solve for x
    x = 909,858,730.13/43,523.28
  6. Step 6: Final answer
    x = 20,905.10

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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.