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Finding the Fourth Proportional to 20,007.25, 30,029.07 and 10,655.11

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Solution

The fourth proportional to 20,007.25, 30,029.07 and 10,655.11 is: 15,992.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.25 : 30,029.07 = 10,655.11 : x
  2. Step 2: Convert to fraction form
    20,007.25/30,029.07 = 10,655.11/x
  3. Step 3: Cross multiply
    20,007.25x = 30,029.07 × 10,655.11
  4. Step 4: Simplify right side
    20,007.25x = 319,963,044.05
  5. Step 5: Solve for x
    x = 319,963,044.05/20,007.25
  6. Step 6: Final answer
    x = 15,992.35

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1.5x scale

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.