Home / 20,932.03-31,397.62-6,140.62

Finding the Fourth Proportional to 20,932.03, 31,397.62 and 6,140.62

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Solution

The fourth proportional to 20,932.03, 31,397.62 and 6,140.62 is: 9,210.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932.03 : 31,397.62 = 6,140.62 : x
  2. Step 2: Convert to fraction form
    20,932.03/31,397.62 = 6,140.62/x
  3. Step 3: Cross multiply
    20,932.03x = 31,397.62 × 6,140.62
  4. Step 4: Simplify right side
    20,932.03x = 192,800,853.32
  5. Step 5: Solve for x
    x = 192,800,853.32/20,932.03
  6. Step 6: Final answer
    x = 9,210.81

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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.