Home / 20,101.77-30,155.36-7,626.42

Finding the Fourth Proportional to 20,101.77, 30,155.36 and 7,626.42

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Solution

The fourth proportional to 20,101.77, 30,155.36 and 7,626.42 is: 11,440.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.77 : 30,155.36 = 7,626.42 : x
  2. Step 2: Convert to fraction form
    20,101.77/30,155.36 = 7,626.42/x
  3. Step 3: Cross multiply
    20,101.77x = 30,155.36 × 7,626.42
  4. Step 4: Simplify right side
    20,101.77x = 229,977,402.48
  5. Step 5: Solve for x
    x = 229,977,402.48/20,101.77
  6. Step 6: Final answer
    x = 11,440.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.