Home / 21,992.12-30,353.19-12,560.68

Finding the Fourth Proportional to 21,992.12, 30,353.19 and 12,560.68

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Solution

The fourth proportional to 21,992.12, 30,353.19 and 12,560.68 is: 17,336.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,992.12 : 30,353.19 = 12,560.68 : x
  2. Step 2: Convert to fraction form
    21,992.12/30,353.19 = 12,560.68/x
  3. Step 3: Cross multiply
    21,992.12x = 30,353.19 × 12,560.68
  4. Step 4: Simplify right side
    21,992.12x = 381,256,643.77
  5. Step 5: Solve for x
    x = 381,256,643.77/21,992.12
  6. Step 6: Final answer
    x = 17,336.06

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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.