Home / 20,903.49-28,846.62-11,471.85

Finding the Fourth Proportional to 20,903.49, 28,846.62 and 11,471.85

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Solution

The fourth proportional to 20,903.49, 28,846.62 and 11,471.85 is: 15,831.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.49 : 28,846.62 = 11,471.85 : x
  2. Step 2: Convert to fraction form
    20,903.49/28,846.62 = 11,471.85/x
  3. Step 3: Cross multiply
    20,903.49x = 28,846.62 × 11,471.85
  4. Step 4: Simplify right side
    20,903.49x = 330,924,097.65
  5. Step 5: Solve for x
    x = 330,924,097.65/20,903.49
  6. Step 6: Final answer
    x = 15,831.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.