Home / 22,211.56-30,632.11-18,428.74

Finding the Fourth Proportional to 22,211.56, 30,632.11 and 18,428.74

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Solution

The fourth proportional to 22,211.56, 30,632.11 and 18,428.74 is: 25,415.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,211.56 : 30,632.11 = 18,428.74 : x
  2. Step 2: Convert to fraction form
    22,211.56/30,632.11 = 18,428.74/x
  3. Step 3: Cross multiply
    22,211.56x = 30,632.11 × 18,428.74
  4. Step 4: Simplify right side
    22,211.56x = 564,511,037.68
  5. Step 5: Solve for x
    x = 564,511,037.68/22,211.56
  6. Step 6: Final answer
    x = 25,415.19

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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.