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Finding the Fourth Proportional to 21,997.65, 32,996.54 and 5,357.69

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Solution

The fourth proportional to 21,997.65, 32,996.54 and 5,357.69 is: 8,036.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.65 : 32,996.54 = 5,357.69 : x
  2. Step 2: Convert to fraction form
    21,997.65/32,996.54 = 5,357.69/x
  3. Step 3: Cross multiply
    21,997.65x = 32,996.54 × 5,357.69
  4. Step 4: Simplify right side
    21,997.65x = 176,785,232.39
  5. Step 5: Solve for x
    x = 176,785,232.39/21,997.65
  6. Step 6: Final answer
    x = 8,036.55

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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.