Home / 21,261.17-31,891.75-15,095.62

Finding the Fourth Proportional to 21,261.17, 31,891.75 and 15,095.62

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Solution

The fourth proportional to 21,261.17, 31,891.75 and 15,095.62 is: 22,643.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261.17 : 31,891.75 = 15,095.62 : x
  2. Step 2: Convert to fraction form
    21,261.17/31,891.75 = 15,095.62/x
  3. Step 3: Cross multiply
    21,261.17x = 31,891.75 × 15,095.62
  4. Step 4: Simplify right side
    21,261.17x = 481,425,621.67
  5. Step 5: Solve for x
    x = 481,425,621.67/21,261.17
  6. Step 6: Final answer
    x = 22,643.43

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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.