Home / 20,320.56-30,482.34-5,530.62

Finding the Fourth Proportional to 20,320.56, 30,482.34 and 5,530.62

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Solution

The fourth proportional to 20,320.56, 30,482.34 and 5,530.62 is: 8,296.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,320.56 : 30,482.34 = 5,530.62 : x
  2. Step 2: Convert to fraction form
    20,320.56/30,482.34 = 5,530.62/x
  3. Step 3: Cross multiply
    20,320.56x = 30,482.34 × 5,530.62
  4. Step 4: Simplify right side
    20,320.56x = 168,586,239.25
  5. Step 5: Solve for x
    x = 168,586,239.25/20,320.56
  6. Step 6: Final answer
    x = 8,296.34

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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.