Home / 43,458.60-65,146.29-13,860.12

Finding the Fourth Proportional to 43,458.60, 65,146.29 and 13,860.12

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Solution

The fourth proportional to 43,458.60, 65,146.29 and 13,860.12 is: 20,776.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,458.60 : 65,146.29 = 13,860.12 : x
  2. Step 2: Convert to fraction form
    43,458.60/65,146.29 = 13,860.12/x
  3. Step 3: Cross multiply
    43,458.60x = 65,146.29 × 13,860.12
  4. Step 4: Simplify right side
    43,458.60x = 902,935,396.95
  5. Step 5: Solve for x
    x = 902,935,396.95/43,458.60
  6. Step 6: Final answer
    x = 20,776.91

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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.