Home / 20,506.28-28,239.08-17,816.27

Finding the Fourth Proportional to 20,506.28, 28,239.08 and 17,816.27

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Solution

The fourth proportional to 20,506.28, 28,239.08 and 17,816.27 is: 24,534.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506.28 : 28,239.08 = 17,816.27 : x
  2. Step 2: Convert to fraction form
    20,506.28/28,239.08 = 17,816.27/x
  3. Step 3: Cross multiply
    20,506.28x = 28,239.08 × 17,816.27
  4. Step 4: Simplify right side
    20,506.28x = 503,114,843.55
  5. Step 5: Solve for x
    x = 503,114,843.55/20,506.28
  6. Step 6: Final answer
    x = 24,534.68

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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.