Home / 20,462.10-30,679.79-9,353.36

Finding the Fourth Proportional to 20,462.10, 30,679.79 and 9,353.36

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Solution

The fourth proportional to 20,462.10, 30,679.79 and 9,353.36 is: 14,023.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,462.10 : 30,679.79 = 9,353.36 : x
  2. Step 2: Convert to fraction form
    20,462.10/30,679.79 = 9,353.36/x
  3. Step 3: Cross multiply
    20,462.10x = 30,679.79 × 9,353.36
  4. Step 4: Simplify right side
    20,462.10x = 286,958,920.43
  5. Step 5: Solve for x
    x = 286,958,920.43/20,462.10
  6. Step 6: Final answer
    x = 14,023.92

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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.