Home / 22,161.21-30,580.11-12,470.50

Finding the Fourth Proportional to 22,161.21, 30,580.11 and 12,470.50

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Solution

The fourth proportional to 22,161.21, 30,580.11 and 12,470.50 is: 17,207.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,161.21 : 30,580.11 = 12,470.50 : x
  2. Step 2: Convert to fraction form
    22,161.21/30,580.11 = 12,470.50/x
  3. Step 3: Cross multiply
    22,161.21x = 30,580.11 × 12,470.50
  4. Step 4: Simplify right side
    22,161.21x = 381,349,162.67
  5. Step 5: Solve for x
    x = 381,349,162.67/22,161.21
  6. Step 6: Final answer
    x = 17,207.96

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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.