Home / 21,132.34-31,696.07-5,551.18

Finding the Fourth Proportional to 21,132.34, 31,696.07 and 5,551.18

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Solution

The fourth proportional to 21,132.34, 31,696.07 and 5,551.18 is: 8,326.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,132.34 : 31,696.07 = 5,551.18 : x
  2. Step 2: Convert to fraction form
    21,132.34/31,696.07 = 5,551.18/x
  3. Step 3: Cross multiply
    21,132.34x = 31,696.07 × 5,551.18
  4. Step 4: Simplify right side
    21,132.34x = 175,950,562.11
  5. Step 5: Solve for x
    x = 175,950,562.11/21,132.34
  6. Step 6: Final answer
    x = 8,326.13

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1.5x scale

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.