Home / 21,271.13-31,850.96-14,997.17

Finding the Fourth Proportional to 21,271.13, 31,850.96 and 14,997.17

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Solution

The fourth proportional to 21,271.13, 31,850.96 and 14,997.17 is: 22,456.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,271.13 : 31,850.96 = 14,997.17 : x
  2. Step 2: Convert to fraction form
    21,271.13/31,850.96 = 14,997.17/x
  3. Step 3: Cross multiply
    21,271.13x = 31,850.96 × 14,997.17
  4. Step 4: Simplify right side
    21,271.13x = 477,674,266.42
  5. Step 5: Solve for x
    x = 477,674,266.42/21,271.13
  6. Step 6: Final answer
    x = 22,456.46

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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.