Home / 20,793.60-28,693.44-11,362.14

Finding the Fourth Proportional to 20,793.60, 28,693.44 and 11,362.14

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Solution

The fourth proportional to 20,793.60, 28,693.44 and 11,362.14 is: 15,678.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793.60 : 28,693.44 = 11,362.14 : x
  2. Step 2: Convert to fraction form
    20,793.60/28,693.44 = 11,362.14/x
  3. Step 3: Cross multiply
    20,793.60x = 28,693.44 × 11,362.14
  4. Step 4: Simplify right side
    20,793.60x = 326,018,882.36
  5. Step 5: Solve for x
    x = 326,018,882.36/20,793.60
  6. Step 6: Final answer
    x = 15,678.81

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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.