Home / 21,614.76-29,827.44-12,183.12

Finding the Fourth Proportional to 21,614.76, 29,827.44 and 12,183.12

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Solution

The fourth proportional to 21,614.76, 29,827.44 and 12,183.12 is: 16,812.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,614.76 : 29,827.44 = 12,183.12 : x
  2. Step 2: Convert to fraction form
    21,614.76/29,827.44 = 12,183.12/x
  3. Step 3: Cross multiply
    21,614.76x = 29,827.44 × 12,183.12
  4. Step 4: Simplify right side
    21,614.76x = 363,391,280.81
  5. Step 5: Solve for x
    x = 363,391,280.81/21,614.76
  6. Step 6: Final answer
    x = 16,812.18

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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.