Home / 28,009.14-38,644.34-16,672.92

Finding the Fourth Proportional to 28,009.14, 38,644.34 and 16,672.92

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Solution

The fourth proportional to 28,009.14, 38,644.34 and 16,672.92 is: 23,003.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,009.14 : 38,644.34 = 16,672.92 : x
  2. Step 2: Convert to fraction form
    28,009.14/38,644.34 = 16,672.92/x
  3. Step 3: Cross multiply
    28,009.14x = 38,644.34 × 16,672.92
  4. Step 4: Simplify right side
    28,009.14x = 644,313,989.27
  5. Step 5: Solve for x
    x = 644,313,989.27/28,009.14
  6. Step 6: Final answer
    x = 23,003.70

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Double scale
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Similar ratio
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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.