Home / 28,255.77-38,996.42-16,319.09

Finding the Fourth Proportional to 28,255.77, 38,996.42 and 16,319.09

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Solution

The fourth proportional to 28,255.77, 38,996.42 and 16,319.09 is: 22,522.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255.77 : 38,996.42 = 16,319.09 : x
  2. Step 2: Convert to fraction form
    28,255.77/38,996.42 = 16,319.09/x
  3. Step 3: Cross multiply
    28,255.77x = 38,996.42 × 16,319.09
  4. Step 4: Simplify right side
    28,255.77x = 636,386,103.55
  5. Step 5: Solve for x
    x = 636,386,103.55/28,255.77
  6. Step 6: Final answer
    x = 22,522.34

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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.