Home / 21,998.91-30,360.11-12,567.27

Finding the Fourth Proportional to 21,998.91, 30,360.11 and 12,567.27

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Solution

The fourth proportional to 21,998.91, 30,360.11 and 12,567.27 is: 17,343.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.91 : 30,360.11 = 12,567.27 : x
  2. Step 2: Convert to fraction form
    21,998.91/30,360.11 = 12,567.27/x
  3. Step 3: Cross multiply
    21,998.91x = 30,360.11 × 12,567.27
  4. Step 4: Simplify right side
    21,998.91x = 381,543,636.76
  5. Step 5: Solve for x
    x = 381,543,636.76/21,998.91
  6. Step 6: Final answer
    x = 17,343.75

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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.