Home / 28,213.76-38,929.56-16,277.60

Finding the Fourth Proportional to 28,213.76, 38,929.56 and 16,277.60

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Solution

The fourth proportional to 28,213.76, 38,929.56 and 16,277.60 is: 22,459.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,213.76 : 38,929.56 = 16,277.60 : x
  2. Step 2: Convert to fraction form
    28,213.76/38,929.56 = 16,277.60/x
  3. Step 3: Cross multiply
    28,213.76x = 38,929.56 × 16,277.60
  4. Step 4: Simplify right side
    28,213.76x = 633,679,805.86
  5. Step 5: Solve for x
    x = 633,679,805.86/28,213.76
  6. Step 6: Final answer
    x = 22,459.96

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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.