Home / 22,204.72-30,643.68-12,774.70

Finding the Fourth Proportional to 22,204.72, 30,643.68 and 12,774.70

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Solution

The fourth proportional to 22,204.72, 30,643.68 and 12,774.70 is: 17,629.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,204.72 : 30,643.68 = 12,774.70 : x
  2. Step 2: Convert to fraction form
    22,204.72/30,643.68 = 12,774.70/x
  3. Step 3: Cross multiply
    22,204.72x = 30,643.68 × 12,774.70
  4. Step 4: Simplify right side
    22,204.72x = 391,463,818.90
  5. Step 5: Solve for x
    x = 391,463,818.90/22,204.72
  6. Step 6: Final answer
    x = 17,629.76

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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.