Home / 28,249.08-42,357.02-10,720.14

Finding the Fourth Proportional to 28,249.08, 42,357.02 and 10,720.14

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Solution

The fourth proportional to 28,249.08, 42,357.02 and 10,720.14 is: 16,073.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.08 : 42,357.02 = 10,720.14 : x
  2. Step 2: Convert to fraction form
    28,249.08/42,357.02 = 10,720.14/x
  3. Step 3: Cross multiply
    28,249.08x = 42,357.02 × 10,720.14
  4. Step 4: Simplify right side
    28,249.08x = 454,073,184.38
  5. Step 5: Solve for x
    x = 454,073,184.38/28,249.08
  6. Step 6: Final answer
    x = 16,073.91

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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.