Home / 20,372.22-30,559.95-8,685.54

Finding the Fourth Proportional to 20,372.22, 30,559.95 and 8,685.54

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Solution

The fourth proportional to 20,372.22, 30,559.95 and 8,685.54 is: 13,029.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372.22 : 30,559.95 = 8,685.54 : x
  2. Step 2: Convert to fraction form
    20,372.22/30,559.95 = 8,685.54/x
  3. Step 3: Cross multiply
    20,372.22x = 30,559.95 × 8,685.54
  4. Step 4: Simplify right side
    20,372.22x = 265,429,668.12
  5. Step 5: Solve for x
    x = 265,429,668.12/20,372.22
  6. Step 6: Final answer
    x = 13,029.00

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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.