Home / 20,100.10-27,737.76-11,025.50

Finding the Fourth Proportional to 20,100.10, 27,737.76 and 11,025.50

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Solution

The fourth proportional to 20,100.10, 27,737.76 and 11,025.50 is: 15,214.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.10 : 27,737.76 = 11,025.50 : x
  2. Step 2: Convert to fraction form
    20,100.10/27,737.76 = 11,025.50/x
  3. Step 3: Cross multiply
    20,100.10x = 27,737.76 × 11,025.50
  4. Step 4: Simplify right side
    20,100.10x = 305,822,672.88
  5. Step 5: Solve for x
    x = 305,822,672.88/20,100.10
  6. Step 6: Final answer
    x = 15,214.98

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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.