Home / 28,068.92-42,078.57-11,442.86

Finding the Fourth Proportional to 28,068.92, 42,078.57 and 11,442.86

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Solution

The fourth proportional to 28,068.92, 42,078.57 and 11,442.86 is: 17,154.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068.92 : 42,078.57 = 11,442.86 : x
  2. Step 2: Convert to fraction form
    28,068.92/42,078.57 = 11,442.86/x
  3. Step 3: Cross multiply
    28,068.92x = 42,078.57 × 11,442.86
  4. Step 4: Simplify right side
    28,068.92x = 481,499,185.51
  5. Step 5: Solve for x
    x = 481,499,185.51/28,068.92
  6. Step 6: Final answer
    x = 17,154.18

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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.