Home / 21,272.04-31,966.38-20,064.33

Finding the Fourth Proportional to 21,272.04, 31,966.38 and 20,064.33

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Solution

The fourth proportional to 21,272.04, 31,966.38 and 20,064.33 is: 30,151.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272.04 : 31,966.38 = 20,064.33 : x
  2. Step 2: Convert to fraction form
    21,272.04/31,966.38 = 20,064.33/x
  3. Step 3: Cross multiply
    21,272.04x = 31,966.38 × 20,064.33
  4. Step 4: Simplify right side
    21,272.04x = 641,383,997.23
  5. Step 5: Solve for x
    x = 641,383,997.23/21,272.04
  6. Step 6: Final answer
    x = 30,151.50

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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.