Home / 20,435.25-30,474.05-20,248.41

Finding the Fourth Proportional to 20,435.25, 30,474.05 and 20,248.41

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Solution

The fourth proportional to 20,435.25, 30,474.05 and 20,248.41 is: 30,195.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.25 : 30,474.05 = 20,248.41 : x
  2. Step 2: Convert to fraction form
    20,435.25/30,474.05 = 20,248.41/x
  3. Step 3: Cross multiply
    20,435.25x = 30,474.05 × 20,248.41
  4. Step 4: Simplify right side
    20,435.25x = 617,050,805.15
  5. Step 5: Solve for x
    x = 617,050,805.15/20,435.25
  6. Step 6: Final answer
    x = 30,195.41

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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.