Home / 21,729.72-29,984.94-17,264.28

Finding the Fourth Proportional to 21,729.72, 29,984.94 and 17,264.28

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Solution

The fourth proportional to 21,729.72, 29,984.94 and 17,264.28 is: 23,823.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,729.72 : 29,984.94 = 17,264.28 : x
  2. Step 2: Convert to fraction form
    21,729.72/29,984.94 = 17,264.28/x
  3. Step 3: Cross multiply
    21,729.72x = 29,984.94 × 17,264.28
  4. Step 4: Simplify right side
    21,729.72x = 517,668,399.94
  5. Step 5: Solve for x
    x = 517,668,399.94/21,729.72
  6. Step 6: Final answer
    x = 23,823.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.