Home / 22,000.11-30,360.17-11,928.54

Finding the Fourth Proportional to 22,000.11, 30,360.17 and 11,928.54

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Solution

The fourth proportional to 22,000.11, 30,360.17 and 11,928.54 is: 16,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,000.11 : 30,360.17 = 11,928.54 : x
  2. Step 2: Convert to fraction form
    22,000.11/30,360.17 = 11,928.54/x
  3. Step 3: Cross multiply
    22,000.11x = 30,360.17 × 11,928.54
  4. Step 4: Simplify right side
    22,000.11x = 362,152,502.25
  5. Step 5: Solve for x
    x = 362,152,502.25/22,000.11
  6. Step 6: Final answer
    x = 16,461.40

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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.