Home / 22,072.50-30,459.96-12,640.86

Finding the Fourth Proportional to 22,072.50, 30,459.96 and 12,640.86

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Solution

The fourth proportional to 22,072.50, 30,459.96 and 12,640.86 is: 17,444.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,072.50 : 30,459.96 = 12,640.86 : x
  2. Step 2: Convert to fraction form
    22,072.50/30,459.96 = 12,640.86/x
  3. Step 3: Cross multiply
    22,072.50x = 30,459.96 × 12,640.86
  4. Step 4: Simplify right side
    22,072.50x = 385,040,089.97
  5. Step 5: Solve for x
    x = 385,040,089.97/22,072.50
  6. Step 6: Final answer
    x = 17,444.34

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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.