Home / 20,260.34-30,393.54-7,110.39

Finding the Fourth Proportional to 20,260.34, 30,393.54 and 7,110.39

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Solution

The fourth proportional to 20,260.34, 30,393.54 and 7,110.39 is: 10,666.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.34 : 30,393.54 = 7,110.39 : x
  2. Step 2: Convert to fraction form
    20,260.34/30,393.54 = 7,110.39/x
  3. Step 3: Cross multiply
    20,260.34x = 30,393.54 × 7,110.39
  4. Step 4: Simplify right side
    20,260.34x = 216,109,922.88
  5. Step 5: Solve for x
    x = 216,109,922.88/20,260.34
  6. Step 6: Final answer
    x = 10,666.65

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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.