Home / 43,489.32-65,238.05-13,900.11

Finding the Fourth Proportional to 43,489.32, 65,238.05 and 13,900.11

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Solution

The fourth proportional to 43,489.32, 65,238.05 and 13,900.11 is: 20,851.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,489.32 : 65,238.05 = 13,900.11 : x
  2. Step 2: Convert to fraction form
    43,489.32/65,238.05 = 13,900.11/x
  3. Step 3: Cross multiply
    43,489.32x = 65,238.05 × 13,900.11
  4. Step 4: Simplify right side
    43,489.32x = 906,815,675.49
  5. Step 5: Solve for x
    x = 906,815,675.49/43,489.32
  6. Step 6: Final answer
    x = 20,851.46

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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.