Home / 20,727.38-28,593.07-14,015.39

Finding the Fourth Proportional to 20,727.38, 28,593.07 and 14,015.39

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Solution

The fourth proportional to 20,727.38, 28,593.07 and 14,015.39 is: 19,333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.38 : 28,593.07 = 14,015.39 : x
  2. Step 2: Convert to fraction form
    20,727.38/28,593.07 = 14,015.39/x
  3. Step 3: Cross multiply
    20,727.38x = 28,593.07 × 14,015.39
  4. Step 4: Simplify right side
    20,727.38x = 400,742,849.34
  5. Step 5: Solve for x
    x = 400,742,849.34/20,727.38
  6. Step 6: Final answer
    x = 19,333.98

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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.