Home / 21,332.57-31,955.99-10,626.66

Finding the Fourth Proportional to 21,332.57, 31,955.99 and 10,626.66

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Solution

The fourth proportional to 21,332.57, 31,955.99 and 10,626.66 is: 15,918.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,332.57 : 31,955.99 = 10,626.66 : x
  2. Step 2: Convert to fraction form
    21,332.57/31,955.99 = 10,626.66/x
  3. Step 3: Cross multiply
    21,332.57x = 31,955.99 × 10,626.66
  4. Step 4: Simplify right side
    21,332.57x = 339,585,387.56
  5. Step 5: Solve for x
    x = 339,585,387.56/21,332.57
  6. Step 6: Final answer
    x = 15,918.64

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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.