Home / 20,359.15-30,539.04-6,319.03

Finding the Fourth Proportional to 20,359.15, 30,539.04 and 6,319.03

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Solution

The fourth proportional to 20,359.15, 30,539.04 and 6,319.03 is: 9,478.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,359.15 : 30,539.04 = 6,319.03 : x
  2. Step 2: Convert to fraction form
    20,359.15/30,539.04 = 6,319.03/x
  3. Step 3: Cross multiply
    20,359.15x = 30,539.04 × 6,319.03
  4. Step 4: Simplify right side
    20,359.15x = 192,977,109.93
  5. Step 5: Solve for x
    x = 192,977,109.93/20,359.15
  6. Step 6: Final answer
    x = 9,478.64

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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.