Home / 20,650.74-30,757.53-20,550.06

Finding the Fourth Proportional to 20,650.74, 30,757.53 and 20,550.06

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Solution

The fourth proportional to 20,650.74, 30,757.53 and 20,550.06 is: 30,607.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650.74 : 30,757.53 = 20,550.06 : x
  2. Step 2: Convert to fraction form
    20,650.74/30,757.53 = 20,550.06/x
  3. Step 3: Cross multiply
    20,650.74x = 30,757.53 × 20,550.06
  4. Step 4: Simplify right side
    20,650.74x = 632,068,933.16
  5. Step 5: Solve for x
    x = 632,068,933.16/20,650.74
  6. Step 6: Final answer
    x = 30,607.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.