Home / 20,581.08-30,862.50-7,433.56

Finding the Fourth Proportional to 20,581.08, 30,862.50 and 7,433.56

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Solution

The fourth proportional to 20,581.08, 30,862.50 and 7,433.56 is: 11,147.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,581.08 : 30,862.50 = 7,433.56 : x
  2. Step 2: Convert to fraction form
    20,581.08/30,862.50 = 7,433.56/x
  3. Step 3: Cross multiply
    20,581.08x = 30,862.50 × 7,433.56
  4. Step 4: Simplify right side
    20,581.08x = 229,418,245.50
  5. Step 5: Solve for x
    x = 229,418,245.50/20,581.08
  6. Step 6: Final answer
    x = 11,147.05

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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.