Home / 19,135.20-28,702.75-5,095.22

Finding the Fourth Proportional to 19,135.20, 28,702.75 and 5,095.22

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Solution

The fourth proportional to 19,135.20, 28,702.75 and 5,095.22 is: 7,642.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.20 : 28,702.75 = 5,095.22 : x
  2. Step 2: Convert to fraction form
    19,135.20/28,702.75 = 5,095.22/x
  3. Step 3: Cross multiply
    19,135.20x = 28,702.75 × 5,095.22
  4. Step 4: Simplify right side
    19,135.20x = 146,246,825.86
  5. Step 5: Solve for x
    x = 146,246,825.86/19,135.20
  6. Step 6: Final answer
    x = 7,642.82

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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.