Home / 22,151.75-30,569.42-12,215.75

Finding the Fourth Proportional to 22,151.75, 30,569.42 and 12,215.75

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Solution

The fourth proportional to 22,151.75, 30,569.42 and 12,215.75 is: 16,857.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,151.75 : 30,569.42 = 12,215.75 : x
  2. Step 2: Convert to fraction form
    22,151.75/30,569.42 = 12,215.75/x
  3. Step 3: Cross multiply
    22,151.75x = 30,569.42 × 12,215.75
  4. Step 4: Simplify right side
    22,151.75x = 373,428,392.37
  5. Step 5: Solve for x
    x = 373,428,392.37/22,151.75
  6. Step 6: Final answer
    x = 16,857.74

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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.