Home / 20,626.86-28,393.14-17,803.20

Finding the Fourth Proportional to 20,626.86, 28,393.14 and 17,803.20

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Solution

The fourth proportional to 20,626.86, 28,393.14 and 17,803.20 is: 24,506.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.86 : 28,393.14 = 17,803.20 : x
  2. Step 2: Convert to fraction form
    20,626.86/28,393.14 = 17,803.20/x
  3. Step 3: Cross multiply
    20,626.86x = 28,393.14 × 17,803.20
  4. Step 4: Simplify right side
    20,626.86x = 505,488,750.05
  5. Step 5: Solve for x
    x = 505,488,750.05/20,626.86
  6. Step 6: Final answer
    x = 24,506.34

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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.