Home / 21,993.57-30,355.19-12,562.13

Finding the Fourth Proportional to 21,993.57, 30,355.19 and 12,562.13

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Solution

The fourth proportional to 21,993.57, 30,355.19 and 12,562.13 is: 17,338.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,993.57 : 30,355.19 = 12,562.13 : x
  2. Step 2: Convert to fraction form
    21,993.57/30,355.19 = 12,562.13/x
  3. Step 3: Cross multiply
    21,993.57x = 30,355.19 × 12,562.13
  4. Step 4: Simplify right side
    21,993.57x = 381,325,842.95
  5. Step 5: Solve for x
    x = 381,325,842.95/21,993.57
  6. Step 6: Final answer
    x = 17,338.06

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.