Home / 38,969.10-58,348.04-20,209.79

Finding the Fourth Proportional to 38,969.10, 58,348.04 and 20,209.79

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Solution

The fourth proportional to 38,969.10, 58,348.04 and 20,209.79 is: 30,259.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,969.10 : 58,348.04 = 20,209.79 : x
  2. Step 2: Convert to fraction form
    38,969.10/58,348.04 = 20,209.79/x
  3. Step 3: Cross multiply
    38,969.10x = 58,348.04 × 20,209.79
  4. Step 4: Simplify right side
    38,969.10x = 1,179,201,680.13
  5. Step 5: Solve for x
    x = 1,179,201,680.13/38,969.10
  6. Step 6: Final answer
    x = 30,259.92

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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.