Home / 20,369.93-30,553.53-5,578.97

Finding the Fourth Proportional to 20,369.93, 30,553.53 and 5,578.97

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Solution

The fourth proportional to 20,369.93, 30,553.53 and 5,578.97 is: 8,368.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,369.93 : 30,553.53 = 5,578.97 : x
  2. Step 2: Convert to fraction form
    20,369.93/30,553.53 = 5,578.97/x
  3. Step 3: Cross multiply
    20,369.93x = 30,553.53 × 5,578.97
  4. Step 4: Simplify right side
    20,369.93x = 170,457,227.26
  5. Step 5: Solve for x
    x = 170,457,227.26/20,369.93
  6. Step 6: Final answer
    x = 8,368.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.