Home / 20,378.52-30,561.46-9,841.99

Finding the Fourth Proportional to 20,378.52, 30,561.46 and 9,841.99

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Solution

The fourth proportional to 20,378.52, 30,561.46 and 9,841.99 is: 14,759.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,378.52 : 30,561.46 = 9,841.99 : x
  2. Step 2: Convert to fraction form
    20,378.52/30,561.46 = 9,841.99/x
  3. Step 3: Cross multiply
    20,378.52x = 30,561.46 × 9,841.99
  4. Step 4: Simplify right side
    20,378.52x = 300,785,583.71
  5. Step 5: Solve for x
    x = 300,785,583.71/20,378.52
  6. Step 6: Final answer
    x = 14,759.93

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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.