Home / 20,847.60-31,254.48-8,362.08

Finding the Fourth Proportional to 20,847.60, 31,254.48 and 8,362.08

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Solution

The fourth proportional to 20,847.60, 31,254.48 and 8,362.08 is: 12,536.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,847.60 : 31,254.48 = 8,362.08 : x
  2. Step 2: Convert to fraction form
    20,847.60/31,254.48 = 8,362.08/x
  3. Step 3: Cross multiply
    20,847.60x = 31,254.48 × 8,362.08
  4. Step 4: Simplify right side
    20,847.60x = 261,352,462.12
  5. Step 5: Solve for x
    x = 261,352,462.12/20,847.60
  6. Step 6: Final answer
    x = 12,536.33

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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.