Home / 28,091.09-42,142.92-10,561.07

Finding the Fourth Proportional to 28,091.09, 42,142.92 and 10,561.07

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Solution

The fourth proportional to 28,091.09, 42,142.92 and 10,561.07 is: 15,843.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,091.09 : 42,142.92 = 10,561.07 : x
  2. Step 2: Convert to fraction form
    28,091.09/42,142.92 = 10,561.07/x
  3. Step 3: Cross multiply
    28,091.09x = 42,142.92 × 10,561.07
  4. Step 4: Simplify right side
    28,091.09x = 445,074,328.12
  5. Step 5: Solve for x
    x = 445,074,328.12/28,091.09
  6. Step 6: Final answer
    x = 15,843.97

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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.