Home / 18,880.42-28,448.52-15,665.53

Finding the Fourth Proportional to 18,880.42, 28,448.52 and 15,665.53

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Solution

The fourth proportional to 18,880.42, 28,448.52 and 15,665.53 is: 23,604.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.42 : 28,448.52 = 15,665.53 : x
  2. Step 2: Convert to fraction form
    18,880.42/28,448.52 = 15,665.53/x
  3. Step 3: Cross multiply
    18,880.42x = 28,448.52 × 15,665.53
  4. Step 4: Simplify right side
    18,880.42x = 445,661,143.52
  5. Step 5: Solve for x
    x = 445,661,143.52/18,880.42
  6. Step 6: Final answer
    x = 23,604.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.