Home / 20,389.49-30,578.69-5,594.90

Finding the Fourth Proportional to 20,389.49, 30,578.69 and 5,594.90

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Solution

The fourth proportional to 20,389.49, 30,578.69 and 5,594.90 is: 8,390.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,389.49 : 30,578.69 = 5,594.90 : x
  2. Step 2: Convert to fraction form
    20,389.49/30,578.69 = 5,594.90/x
  3. Step 3: Cross multiply
    20,389.49x = 30,578.69 × 5,594.90
  4. Step 4: Simplify right side
    20,389.49x = 171,084,712.68
  5. Step 5: Solve for x
    x = 171,084,712.68/20,389.49
  6. Step 6: Final answer
    x = 8,390.83

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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.