Home / 20,339.38-30,567.39-9,958.42

Finding the Fourth Proportional to 20,339.38, 30,567.39 and 9,958.42

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Solution

The fourth proportional to 20,339.38, 30,567.39 and 9,958.42 is: 14,966.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,339.38 : 30,567.39 = 9,958.42 : x
  2. Step 2: Convert to fraction form
    20,339.38/30,567.39 = 9,958.42/x
  3. Step 3: Cross multiply
    20,339.38x = 30,567.39 × 9,958.42
  4. Step 4: Simplify right side
    20,339.38x = 304,402,907.92
  5. Step 5: Solve for x
    x = 304,402,907.92/20,339.38
  6. Step 6: Final answer
    x = 14,966.18

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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.