Home / 20,429.13-28,174.95-17,257.98

Finding the Fourth Proportional to 20,429.13, 28,174.95 and 17,257.98

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Solution

The fourth proportional to 20,429.13, 28,174.95 and 17,257.98 is: 23,801.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,429.13 : 28,174.95 = 17,257.98 : x
  2. Step 2: Convert to fraction form
    20,429.13/28,174.95 = 17,257.98/x
  3. Step 3: Cross multiply
    20,429.13x = 28,174.95 × 17,257.98
  4. Step 4: Simplify right side
    20,429.13x = 486,242,723.60
  5. Step 5: Solve for x
    x = 486,242,723.60/20,429.13
  6. Step 6: Final answer
    x = 23,801.44

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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.