Home / 22,210.61-30,648.53-12,138.41

Finding the Fourth Proportional to 22,210.61, 30,648.53 and 12,138.41

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Solution

The fourth proportional to 22,210.61, 30,648.53 and 12,138.41 is: 16,749.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,210.61 : 30,648.53 = 12,138.41 : x
  2. Step 2: Convert to fraction form
    22,210.61/30,648.53 = 12,138.41/x
  3. Step 3: Cross multiply
    22,210.61x = 30,648.53 × 12,138.41
  4. Step 4: Simplify right side
    22,210.61x = 372,024,289.33
  5. Step 5: Solve for x
    x = 372,024,289.33/22,210.61
  6. Step 6: Final answer
    x = 16,749.85

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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.