Home / 18,836.10-28,256.99-5,689.53

Finding the Fourth Proportional to 18,836.10, 28,256.99 and 5,689.53

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Solution

The fourth proportional to 18,836.10, 28,256.99 and 5,689.53 is: 8,535.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,836.10 : 28,256.99 = 5,689.53 : x
  2. Step 2: Convert to fraction form
    18,836.10/28,256.99 = 5,689.53/x
  3. Step 3: Cross multiply
    18,836.10x = 28,256.99 × 5,689.53
  4. Step 4: Simplify right side
    18,836.10x = 160,768,963.87
  5. Step 5: Solve for x
    x = 160,768,963.87/18,836.10
  6. Step 6: Final answer
    x = 8,535.15

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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.