Home / 39,842.69-54,980.88-21,934.29

Finding the Fourth Proportional to 39,842.69, 54,980.88 and 21,934.29

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Solution

The fourth proportional to 39,842.69, 54,980.88 and 21,934.29 is: 30,268.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,842.69 : 54,980.88 = 21,934.29 : x
  2. Step 2: Convert to fraction form
    39,842.69/54,980.88 = 21,934.29/x
  3. Step 3: Cross multiply
    39,842.69x = 54,980.88 × 21,934.29
  4. Step 4: Simplify right side
    39,842.69x = 1,205,966,690.30
  5. Step 5: Solve for x
    x = 1,205,966,690.30/39,842.69
  6. Step 6: Final answer
    x = 30,268.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.