Home / 20,560.67-30,818.55-10,551.41

Finding the Fourth Proportional to 20,560.67, 30,818.55 and 10,551.41

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Solution

The fourth proportional to 20,560.67, 30,818.55 and 10,551.41 is: 15,815.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.67 : 30,818.55 = 10,551.41 : x
  2. Step 2: Convert to fraction form
    20,560.67/30,818.55 = 10,551.41/x
  3. Step 3: Cross multiply
    20,560.67x = 30,818.55 × 10,551.41
  4. Step 4: Simplify right side
    20,560.67x = 325,179,156.66
  5. Step 5: Solve for x
    x = 325,179,156.66/20,560.67
  6. Step 6: Final answer
    x = 15,815.59

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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.