Home / 20,218.55-30,333.74-10,364.69

Finding the Fourth Proportional to 20,218.55, 30,333.74 and 10,364.69

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Solution

The fourth proportional to 20,218.55, 30,333.74 and 10,364.69 is: 15,550.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218.55 : 30,333.74 = 10,364.69 : x
  2. Step 2: Convert to fraction form
    20,218.55/30,333.74 = 10,364.69/x
  3. Step 3: Cross multiply
    20,218.55x = 30,333.74 × 10,364.69
  4. Step 4: Simplify right side
    20,218.55x = 314,399,835.65
  5. Step 5: Solve for x
    x = 314,399,835.65/20,218.55
  6. Step 6: Final answer
    x = 15,550.07

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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.