Home / 28,723-39,637.74-16,147.84

Finding the Fourth Proportional to 28,723, 39,637.74 and 16,147.84

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Solution

The fourth proportional to 28,723, 39,637.74 and 16,147.84 is: 22,284.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,723 : 39,637.74 = 16,147.84 : x
  2. Step 2: Convert to fraction form
    28,723/39,637.74 = 16,147.84/x
  3. Step 3: Cross multiply
    28,723x = 39,637.74 × 16,147.84
  4. Step 4: Simplify right side
    28,723x = 640,063,883.48
  5. Step 5: Solve for x
    x = 640,063,883.48/28,723
  6. Step 6: Final answer
    x = 22,284.02

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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.