Home / 20,658.40-30,984.24-5,863.63

Finding the Fourth Proportional to 20,658.40, 30,984.24 and 5,863.63

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Solution

The fourth proportional to 20,658.40, 30,984.24 and 5,863.63 is: 8,794.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,658.40 : 30,984.24 = 5,863.63 : x
  2. Step 2: Convert to fraction form
    20,658.40/30,984.24 = 5,863.63/x
  3. Step 3: Cross multiply
    20,658.40x = 30,984.24 × 5,863.63
  4. Step 4: Simplify right side
    20,658.40x = 181,680,119.19
  5. Step 5: Solve for x
    x = 181,680,119.19/20,658.40
  6. Step 6: Final answer
    x = 8,794.49

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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.