Home / 20,555.61-30,833.57-6,515.37

Finding the Fourth Proportional to 20,555.61, 30,833.57 and 6,515.37

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Solution

The fourth proportional to 20,555.61, 30,833.57 and 6,515.37 is: 9,773.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.61 : 30,833.57 = 6,515.37 : x
  2. Step 2: Convert to fraction form
    20,555.61/30,833.57 = 6,515.37/x
  3. Step 3: Cross multiply
    20,555.61x = 30,833.57 × 6,515.37
  4. Step 4: Simplify right side
    20,555.61x = 200,892,084.39
  5. Step 5: Solve for x
    x = 200,892,084.39/20,555.61
  6. Step 6: Final answer
    x = 9,773.10

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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.