Home / 21,271.28-29,348.91-14,199.03

Finding the Fourth Proportional to 21,271.28, 29,348.91 and 14,199.03

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Solution

The fourth proportional to 21,271.28, 29,348.91 and 14,199.03 is: 19,591.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,271.28 : 29,348.91 = 14,199.03 : x
  2. Step 2: Convert to fraction form
    21,271.28/29,348.91 = 14,199.03/x
  3. Step 3: Cross multiply
    21,271.28x = 29,348.91 × 14,199.03
  4. Step 4: Simplify right side
    21,271.28x = 416,726,053.56
  5. Step 5: Solve for x
    x = 416,726,053.56/21,271.28
  6. Step 6: Final answer
    x = 19,591.02

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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.