Home / 28,082.35-42,111.01-10,539.78

Finding the Fourth Proportional to 28,082.35, 42,111.01 and 10,539.78

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Solution

The fourth proportional to 28,082.35, 42,111.01 and 10,539.78 is: 15,804.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082.35 : 42,111.01 = 10,539.78 : x
  2. Step 2: Convert to fraction form
    28,082.35/42,111.01 = 10,539.78/x
  3. Step 3: Cross multiply
    28,082.35x = 42,111.01 × 10,539.78
  4. Step 4: Simplify right side
    28,082.35x = 443,840,780.98
  5. Step 5: Solve for x
    x = 443,840,780.98/28,082.35
  6. Step 6: Final answer
    x = 15,804.97

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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.