Home / 20,407.08-30,616.77-7,257.74

Finding the Fourth Proportional to 20,407.08, 30,616.77 and 7,257.74

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Solution

The fourth proportional to 20,407.08, 30,616.77 and 7,257.74 is: 10,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,407.08 : 30,616.77 = 7,257.74 : x
  2. Step 2: Convert to fraction form
    20,407.08/30,616.77 = 7,257.74/x
  3. Step 3: Cross multiply
    20,407.08x = 30,616.77 × 7,257.74
  4. Step 4: Simplify right side
    20,407.08x = 222,208,556.30
  5. Step 5: Solve for x
    x = 222,208,556.30/20,407.08
  6. Step 6: Final answer
    x = 10,888.80

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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.