Home / 20,568.15-28,367.28-17,390.16

Finding the Fourth Proportional to 20,568.15, 28,367.28 and 17,390.16

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Solution

The fourth proportional to 20,568.15, 28,367.28 and 17,390.16 is: 23,984.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.15 : 28,367.28 = 17,390.16 : x
  2. Step 2: Convert to fraction form
    20,568.15/28,367.28 = 17,390.16/x
  3. Step 3: Cross multiply
    20,568.15x = 28,367.28 × 17,390.16
  4. Step 4: Simplify right side
    20,568.15x = 493,311,537.96
  5. Step 5: Solve for x
    x = 493,311,537.96/20,568.15
  6. Step 6: Final answer
    x = 23,984.24

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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.