Home / 22,202.41-30,639.76-12,131.47

Finding the Fourth Proportional to 22,202.41, 30,639.76 and 12,131.47

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Solution

The fourth proportional to 22,202.41, 30,639.76 and 12,131.47 is: 16,741.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,202.41 : 30,639.76 = 12,131.47 : x
  2. Step 2: Convert to fraction form
    22,202.41/30,639.76 = 12,131.47/x
  3. Step 3: Cross multiply
    22,202.41x = 30,639.76 × 12,131.47
  4. Step 4: Simplify right side
    22,202.41x = 371,705,222.32
  5. Step 5: Solve for x
    x = 371,705,222.32/22,202.41
  6. Step 6: Final answer
    x = 16,741.66

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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.