Home / 20,203.58-30,285.92-10,347.50

Finding the Fourth Proportional to 20,203.58, 30,285.92 and 10,347.50

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Solution

The fourth proportional to 20,203.58, 30,285.92 and 10,347.50 is: 15,511.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.58 : 30,285.92 = 10,347.50 : x
  2. Step 2: Convert to fraction form
    20,203.58/30,285.92 = 10,347.50/x
  3. Step 3: Cross multiply
    20,203.58x = 30,285.92 × 10,347.50
  4. Step 4: Simplify right side
    20,203.58x = 313,383,557.20
  5. Step 5: Solve for x
    x = 313,383,557.20/20,203.58
  6. Step 6: Final answer
    x = 15,511.29

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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.