Home / 20,295.93-30,436.60-7,809.68

Finding the Fourth Proportional to 20,295.93, 30,436.60 and 7,809.68

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Solution

The fourth proportional to 20,295.93, 30,436.60 and 7,809.68 is: 11,711.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.93 : 30,436.60 = 7,809.68 : x
  2. Step 2: Convert to fraction form
    20,295.93/30,436.60 = 7,809.68/x
  3. Step 3: Cross multiply
    20,295.93x = 30,436.60 × 7,809.68
  4. Step 4: Simplify right side
    20,295.93x = 237,700,106.29
  5. Step 5: Solve for x
    x = 237,700,106.29/20,295.93
  6. Step 6: Final answer
    x = 11,711.71

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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.