Home / 22,129.90-30,547.12-19,767.94

Finding the Fourth Proportional to 22,129.90, 30,547.12 and 19,767.94

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Solution

The fourth proportional to 22,129.90, 30,547.12 and 19,767.94 is: 27,286.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,129.90 : 30,547.12 = 19,767.94 : x
  2. Step 2: Convert to fraction form
    22,129.90/30,547.12 = 19,767.94/x
  3. Step 3: Cross multiply
    22,129.90x = 30,547.12 × 19,767.94
  4. Step 4: Simplify right side
    22,129.90x = 603,853,635.33
  5. Step 5: Solve for x
    x = 603,853,635.33/22,129.90
  6. Step 6: Final answer
    x = 27,286.78

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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.