Home / 34,268.80-51,435.60-21,146.80

Finding the Fourth Proportional to 34,268.80, 51,435.60 and 21,146.80

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Solution

The fourth proportional to 34,268.80, 51,435.60 and 21,146.80 is: 31,740.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,268.80 : 51,435.60 = 21,146.80 : x
  2. Step 2: Convert to fraction form
    34,268.80/51,435.60 = 21,146.80/x
  3. Step 3: Cross multiply
    34,268.80x = 51,435.60 × 21,146.80
  4. Step 4: Simplify right side
    34,268.80x = 1,087,698,346.08
  5. Step 5: Solve for x
    x = 1,087,698,346.08/34,268.80
  6. Step 6: Final answer
    x = 31,740.19

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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.