Home / 22,181.43-30,605.81-12,748.17

Finding the Fourth Proportional to 22,181.43, 30,605.81 and 12,748.17

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Solution

The fourth proportional to 22,181.43, 30,605.81 and 12,748.17 is: 17,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,181.43 : 30,605.81 = 12,748.17 : x
  2. Step 2: Convert to fraction form
    22,181.43/30,605.81 = 12,748.17/x
  3. Step 3: Cross multiply
    22,181.43x = 30,605.81 × 12,748.17
  4. Step 4: Simplify right side
    22,181.43x = 390,168,005.13
  5. Step 5: Solve for x
    x = 390,168,005.13/22,181.43
  6. Step 6: Final answer
    x = 17,589.85

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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.