Home / 28,213.76-38,933.48-16,276.38

Finding the Fourth Proportional to 28,213.76, 38,933.48 and 16,276.38

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Solution

The fourth proportional to 28,213.76, 38,933.48 and 16,276.38 is: 22,460.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,213.76 : 38,933.48 = 16,276.38 : x
  2. Step 2: Convert to fraction form
    28,213.76/38,933.48 = 16,276.38/x
  3. Step 3: Cross multiply
    28,213.76x = 38,933.48 × 16,276.38
  4. Step 4: Simplify right side
    28,213.76x = 633,696,155.89
  5. Step 5: Solve for x
    x = 633,696,155.89/28,213.76
  6. Step 6: Final answer
    x = 22,460.54

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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.