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Finding the Fourth Proportional to 22,009.80, 33,014.70 and 19,417.80

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Solution

The fourth proportional to 22,009.80, 33,014.70 and 19,417.80 is: 29,126.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,009.80 : 33,014.70 = 19,417.80 : x
  2. Step 2: Convert to fraction form
    22,009.80/33,014.70 = 19,417.80/x
  3. Step 3: Cross multiply
    22,009.80x = 33,014.70 × 19,417.80
  4. Step 4: Simplify right side
    22,009.80x = 641,072,841.66
  5. Step 5: Solve for x
    x = 641,072,841.66/22,009.80
  6. Step 6: Final answer
    x = 29,126.70

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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.