Home / 20,544.87-28,356.50-13,362.30

Finding the Fourth Proportional to 20,544.87, 28,356.50 and 13,362.30

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Solution

The fourth proportional to 20,544.87, 28,356.50 and 13,362.30 is: 18,442.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.87 : 28,356.50 = 13,362.30 : x
  2. Step 2: Convert to fraction form
    20,544.87/28,356.50 = 13,362.30/x
  3. Step 3: Cross multiply
    20,544.87x = 28,356.50 × 13,362.30
  4. Step 4: Simplify right side
    20,544.87x = 378,908,093.36
  5. Step 5: Solve for x
    x = 378,908,093.36/20,544.87
  6. Step 6: Final answer
    x = 18,442.95

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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.