Home / 20,257.77-30,390.76-7,108.43

Finding the Fourth Proportional to 20,257.77, 30,390.76 and 7,108.43

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Solution

The fourth proportional to 20,257.77, 30,390.76 and 7,108.43 is: 10,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.77 : 30,390.76 = 7,108.43 : x
  2. Step 2: Convert to fraction form
    20,257.77/30,390.76 = 7,108.43/x
  3. Step 3: Cross multiply
    20,257.77x = 30,390.76 × 7,108.43
  4. Step 4: Simplify right side
    20,257.77x = 216,030,673.47
  5. Step 5: Solve for x
    x = 216,030,673.47/20,257.77
  6. Step 6: Final answer
    x = 10,664.09

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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.