Home / 20,400.39-30,594.51-7,922.34

Finding the Fourth Proportional to 20,400.39, 30,594.51 and 7,922.34

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Solution

The fourth proportional to 20,400.39, 30,594.51 and 7,922.34 is: 11,881.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,400.39 : 30,594.51 = 7,922.34 : x
  2. Step 2: Convert to fraction form
    20,400.39/30,594.51 = 7,922.34/x
  3. Step 3: Cross multiply
    20,400.39x = 30,594.51 × 7,922.34
  4. Step 4: Simplify right side
    20,400.39x = 242,380,110.35
  5. Step 5: Solve for x
    x = 242,380,110.35/20,400.39
  6. Step 6: Final answer
    x = 11,881.15

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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.