Home / 19,945.04-29,920.29-8,851.48

Finding the Fourth Proportional to 19,945.04, 29,920.29 and 8,851.48

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Solution

The fourth proportional to 19,945.04, 29,920.29 and 8,851.48 is: 13,278.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,945.04 : 29,920.29 = 8,851.48 : x
  2. Step 2: Convert to fraction form
    19,945.04/29,920.29 = 8,851.48/x
  3. Step 3: Cross multiply
    19,945.04x = 29,920.29 × 8,851.48
  4. Step 4: Simplify right side
    19,945.04x = 264,838,919.12
  5. Step 5: Solve for x
    x = 264,838,919.12/19,945.04
  6. Step 6: Final answer
    x = 13,278.44

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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.