Home / 21,252.17-31,876.63-7,401.17

Finding the Fourth Proportional to 21,252.17, 31,876.63 and 7,401.17

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Solution

The fourth proportional to 21,252.17, 31,876.63 and 7,401.17 is: 11,101.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252.17 : 31,876.63 = 7,401.17 : x
  2. Step 2: Convert to fraction form
    21,252.17/31,876.63 = 7,401.17/x
  3. Step 3: Cross multiply
    21,252.17x = 31,876.63 × 7,401.17
  4. Step 4: Simplify right side
    21,252.17x = 235,924,357.66
  5. Step 5: Solve for x
    x = 235,924,357.66/21,252.17
  6. Step 6: Final answer
    x = 11,101.19

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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.