Home / 34,268.40-51,451.20-21,146.40

Finding the Fourth Proportional to 34,268.40, 51,451.20 and 21,146.40

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Solution

The fourth proportional to 34,268.40, 51,451.20 and 21,146.40 is: 31,749.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,268.40 : 51,451.20 = 21,146.40 : x
  2. Step 2: Convert to fraction form
    34,268.40/51,451.20 = 21,146.40/x
  3. Step 3: Cross multiply
    34,268.40x = 51,451.20 × 21,146.40
  4. Step 4: Simplify right side
    34,268.40x = 1,088,007,655.68
  5. Step 5: Solve for x
    x = 1,088,007,655.68/34,268.40
  6. Step 6: Final answer
    x = 31,749.59

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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.