Home / 20,254.50-30,395.25-7,784.82

Finding the Fourth Proportional to 20,254.50, 30,395.25 and 7,784.82

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Solution

The fourth proportional to 20,254.50, 30,395.25 and 7,784.82 is: 11,682.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,254.50 : 30,395.25 = 7,784.82 : x
  2. Step 2: Convert to fraction form
    20,254.50/30,395.25 = 7,784.82/x
  3. Step 3: Cross multiply
    20,254.50x = 30,395.25 × 7,784.82
  4. Step 4: Simplify right side
    20,254.50x = 236,621,550.11
  5. Step 5: Solve for x
    x = 236,621,550.11/20,254.50
  6. Step 6: Final answer
    x = 11,682.42

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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.