Home / 20,069.76-30,123.32-10,216.41

Finding the Fourth Proportional to 20,069.76, 30,123.32 and 10,216.41

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Solution

The fourth proportional to 20,069.76, 30,123.32 and 10,216.41 is: 15,334.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,069.76 : 30,123.32 = 10,216.41 : x
  2. Step 2: Convert to fraction form
    20,069.76/30,123.32 = 10,216.41/x
  3. Step 3: Cross multiply
    20,069.76x = 30,123.32 × 10,216.41
  4. Step 4: Simplify right side
    20,069.76x = 307,752,162.14
  5. Step 5: Solve for x
    x = 307,752,162.14/20,069.76
  6. Step 6: Final answer
    x = 15,334.12

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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.