Home / 20,946.35-28,905.76-15,592.73

Finding the Fourth Proportional to 20,946.35, 28,905.76 and 15,592.73

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Solution

The fourth proportional to 20,946.35, 28,905.76 and 15,592.73 is: 21,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.35 : 28,905.76 = 15,592.73 : x
  2. Step 2: Convert to fraction form
    20,946.35/28,905.76 = 15,592.73/x
  3. Step 3: Cross multiply
    20,946.35x = 28,905.76 × 15,592.73
  4. Step 4: Simplify right side
    20,946.35x = 450,719,667.38
  5. Step 5: Solve for x
    x = 450,719,667.38/20,946.35
  6. Step 6: Final answer
    x = 21,517.81

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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.