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Finding the Fourth Proportional to 19,991.07, 30,006.05 and 9,610.11

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Solution

The fourth proportional to 19,991.07, 30,006.05 and 9,610.11 is: 14,424.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.07 : 30,006.05 = 9,610.11 : x
  2. Step 2: Convert to fraction form
    19,991.07/30,006.05 = 9,610.11/x
  3. Step 3: Cross multiply
    19,991.07x = 30,006.05 × 9,610.11
  4. Step 4: Simplify right side
    19,991.07x = 288,361,393.11
  5. Step 5: Solve for x
    x = 288,361,393.11/19,991.07
  6. Step 6: Final answer
    x = 14,424.51

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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.