Home / 20,329.35-30,493.80-5,538.17

Finding the Fourth Proportional to 20,329.35, 30,493.80 and 5,538.17

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Solution

The fourth proportional to 20,329.35, 30,493.80 and 5,538.17 is: 8,307.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,329.35 : 30,493.80 = 5,538.17 : x
  2. Step 2: Convert to fraction form
    20,329.35/30,493.80 = 5,538.17/x
  3. Step 3: Cross multiply
    20,329.35x = 30,493.80 × 5,538.17
  4. Step 4: Simplify right side
    20,329.35x = 168,879,848.35
  5. Step 5: Solve for x
    x = 168,879,848.35/20,329.35
  6. Step 6: Final answer
    x = 8,307.19

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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.