Home / 20,217.07-30,280.46-15,502.35

Finding the Fourth Proportional to 20,217.07, 30,280.46 and 15,502.35

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Solution

The fourth proportional to 20,217.07, 30,280.46 and 15,502.35 is: 23,218.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.07 : 30,280.46 = 15,502.35 : x
  2. Step 2: Convert to fraction form
    20,217.07/30,280.46 = 15,502.35/x
  3. Step 3: Cross multiply
    20,217.07x = 30,280.46 × 15,502.35
  4. Step 4: Simplify right side
    20,217.07x = 469,418,289.08
  5. Step 5: Solve for x
    x = 469,418,289.08/20,217.07
  6. Step 6: Final answer
    x = 23,218.91

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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.