Home / 22,001.40-32,906.10-19,678.20

Finding the Fourth Proportional to 22,001.40, 32,906.10 and 19,678.20

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Solution

The fourth proportional to 22,001.40, 32,906.10 and 19,678.20 is: 29,431.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,001.40 : 32,906.10 = 19,678.20 : x
  2. Step 2: Convert to fraction form
    22,001.40/32,906.10 = 19,678.20/x
  3. Step 3: Cross multiply
    22,001.40x = 32,906.10 × 19,678.20
  4. Step 4: Simplify right side
    22,001.40x = 647,532,817.02
  5. Step 5: Solve for x
    x = 647,532,817.02/22,001.40
  6. Step 6: Final answer
    x = 29,431.44

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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.