Home / 28,249.09-42,357.01-10,720.15

Finding the Fourth Proportional to 28,249.09, 42,357.01 and 10,720.15

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Solution

The fourth proportional to 28,249.09, 42,357.01 and 10,720.15 is: 16,073.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.09 : 42,357.01 = 10,720.15 : x
  2. Step 2: Convert to fraction form
    28,249.09/42,357.01 = 10,720.15/x
  3. Step 3: Cross multiply
    28,249.09x = 42,357.01 × 10,720.15
  4. Step 4: Simplify right side
    28,249.09x = 454,073,500.75
  5. Step 5: Solve for x
    x = 454,073,500.75/28,249.09
  6. Step 6: Final answer
    x = 16,073.92

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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.