Home / 20,540.04-28,336.90-15,175.24

Finding the Fourth Proportional to 20,540.04, 28,336.90 and 15,175.24

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Solution

The fourth proportional to 20,540.04, 28,336.90 and 15,175.24 is: 20,935.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,540.04 : 28,336.90 = 15,175.24 : x
  2. Step 2: Convert to fraction form
    20,540.04/28,336.90 = 15,175.24/x
  3. Step 3: Cross multiply
    20,540.04x = 28,336.90 × 15,175.24
  4. Step 4: Simplify right side
    20,540.04x = 430,019,258.36
  5. Step 5: Solve for x
    x = 430,019,258.36/20,540.04
  6. Step 6: Final answer
    x = 20,935.66

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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.