Home / 22,181.13-30,606.66-12,747.87

Finding the Fourth Proportional to 22,181.13, 30,606.66 and 12,747.87

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Solution

The fourth proportional to 22,181.13, 30,606.66 and 12,747.87 is: 17,590.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,181.13 : 30,606.66 = 12,747.87 : x
  2. Step 2: Convert to fraction form
    22,181.13/30,606.66 = 12,747.87/x
  3. Step 3: Cross multiply
    22,181.13x = 30,606.66 × 12,747.87
  4. Step 4: Simplify right side
    22,181.13x = 390,169,722.81
  5. Step 5: Solve for x
    x = 390,169,722.81/22,181.13
  6. Step 6: Final answer
    x = 17,590.16

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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.