Home / 22,176.35-30,549.78-18,979.43

Finding the Fourth Proportional to 22,176.35, 30,549.78 and 18,979.43

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Solution

The fourth proportional to 22,176.35, 30,549.78 and 18,979.43 is: 26,145.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,176.35 : 30,549.78 = 18,979.43 : x
  2. Step 2: Convert to fraction form
    22,176.35/30,549.78 = 18,979.43/x
  3. Step 3: Cross multiply
    22,176.35x = 30,549.78 × 18,979.43
  4. Step 4: Simplify right side
    22,176.35x = 579,817,258.28
  5. Step 5: Solve for x
    x = 579,817,258.28/22,176.35
  6. Step 6: Final answer
    x = 26,145.75

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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.