Home / 34,268.20-51,402.30-21,146.20

Finding the Fourth Proportional to 34,268.20, 51,402.30 and 21,146.20

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Solution

The fourth proportional to 34,268.20, 51,402.30 and 21,146.20 is: 31,719.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,268.20 : 51,402.30 = 21,146.20 : x
  2. Step 2: Convert to fraction form
    34,268.20/51,402.30 = 21,146.20/x
  3. Step 3: Cross multiply
    34,268.20x = 51,402.30 × 21,146.20
  4. Step 4: Simplify right side
    34,268.20x = 1,086,963,316.26
  5. Step 5: Solve for x
    x = 1,086,963,316.26/34,268.20
  6. Step 6: Final answer
    x = 31,719.30

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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.