Home / 20,399.36-30,562.79-8,526.96

Finding the Fourth Proportional to 20,399.36, 30,562.79 and 8,526.96

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Solution

The fourth proportional to 20,399.36, 30,562.79 and 8,526.96 is: 12,775.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,399.36 : 30,562.79 = 8,526.96 : x
  2. Step 2: Convert to fraction form
    20,399.36/30,562.79 = 8,526.96/x
  3. Step 3: Cross multiply
    20,399.36x = 30,562.79 × 8,526.96
  4. Step 4: Simplify right side
    20,399.36x = 260,607,645.18
  5. Step 5: Solve for x
    x = 260,607,645.18/20,399.36
  6. Step 6: Final answer
    x = 12,775.29

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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.