Home / 22,257.75-30,715.79-12,187.13

Finding the Fourth Proportional to 22,257.75, 30,715.79 and 12,187.13

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Solution

The fourth proportional to 22,257.75, 30,715.79 and 12,187.13 is: 16,818.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,257.75 : 30,715.79 = 12,187.13 : x
  2. Step 2: Convert to fraction form
    22,257.75/30,715.79 = 12,187.13/x
  3. Step 3: Cross multiply
    22,257.75x = 30,715.79 × 12,187.13
  4. Step 4: Simplify right side
    22,257.75x = 374,337,111.27
  5. Step 5: Solve for x
    x = 374,337,111.27/22,257.75
  6. Step 6: Final answer
    x = 16,818.28

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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.