Home / 21,159.63-31,744.08-18,061.11

Finding the Fourth Proportional to 21,159.63, 31,744.08 and 18,061.11

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Solution

The fourth proportional to 21,159.63, 31,744.08 and 18,061.11 is: 27,095.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159.63 : 31,744.08 = 18,061.11 : x
  2. Step 2: Convert to fraction form
    21,159.63/31,744.08 = 18,061.11/x
  3. Step 3: Cross multiply
    21,159.63x = 31,744.08 × 18,061.11
  4. Step 4: Simplify right side
    21,159.63x = 573,333,320.73
  5. Step 5: Solve for x
    x = 573,333,320.73/21,159.63
  6. Step 6: Final answer
    x = 27,095.62

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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.