Home / 20,319.54-30,480.82-5,529.62

Finding the Fourth Proportional to 20,319.54, 30,480.82 and 5,529.62

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Solution

The fourth proportional to 20,319.54, 30,480.82 and 5,529.62 is: 8,294.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,319.54 : 30,480.82 = 5,529.62 : x
  2. Step 2: Convert to fraction form
    20,319.54/30,480.82 = 5,529.62/x
  3. Step 3: Cross multiply
    20,319.54x = 30,480.82 × 5,529.62
  4. Step 4: Simplify right side
    20,319.54x = 168,547,351.89
  5. Step 5: Solve for x
    x = 168,547,351.89/20,319.54
  6. Step 6: Final answer
    x = 8,294.84

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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.