Home / 20,738.76-31,110.78-7,597.32

Finding the Fourth Proportional to 20,738.76, 31,110.78 and 7,597.32

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Solution

The fourth proportional to 20,738.76, 31,110.78 and 7,597.32 is: 11,396.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738.76 : 31,110.78 = 7,597.32 : x
  2. Step 2: Convert to fraction form
    20,738.76/31,110.78 = 7,597.32/x
  3. Step 3: Cross multiply
    20,738.76x = 31,110.78 × 7,597.32
  4. Step 4: Simplify right side
    20,738.76x = 236,358,551.11
  5. Step 5: Solve for x
    x = 236,358,551.11/20,738.76
  6. Step 6: Final answer
    x = 11,396.95

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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.