Home / 21,983.97-32,979.02-7,189.94

Finding the Fourth Proportional to 21,983.97, 32,979.02 and 7,189.94

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Solution

The fourth proportional to 21,983.97, 32,979.02 and 7,189.94 is: 10,785.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,983.97 : 32,979.02 = 7,189.94 : x
  2. Step 2: Convert to fraction form
    21,983.97/32,979.02 = 7,189.94/x
  3. Step 3: Cross multiply
    21,983.97x = 32,979.02 × 7,189.94
  4. Step 4: Simplify right side
    21,983.97x = 237,117,010.16
  5. Step 5: Solve for x
    x = 237,117,010.16/21,983.97
  6. Step 6: Final answer
    x = 10,785.91

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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.