Home / 20,554.20-30,773.70-15,907.80

Finding the Fourth Proportional to 20,554.20, 30,773.70 and 15,907.80

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Solution

The fourth proportional to 20,554.20, 30,773.70 and 15,907.80 is: 23,817.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.20 : 30,773.70 = 15,907.80 : x
  2. Step 2: Convert to fraction form
    20,554.20/30,773.70 = 15,907.80/x
  3. Step 3: Cross multiply
    20,554.20x = 30,773.70 × 15,907.80
  4. Step 4: Simplify right side
    20,554.20x = 489,541,864.86
  5. Step 5: Solve for x
    x = 489,541,864.86/20,554.20
  6. Step 6: Final answer
    x = 23,817.12

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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.