Home / 19,211.52-28,817.28-4,619.52

Finding the Fourth Proportional to 19,211.52, 28,817.28 and 4,619.52

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Solution

The fourth proportional to 19,211.52, 28,817.28 and 4,619.52 is: 6,929.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.52 : 28,817.28 = 4,619.52 : x
  2. Step 2: Convert to fraction form
    19,211.52/28,817.28 = 4,619.52/x
  3. Step 3: Cross multiply
    19,211.52x = 28,817.28 × 4,619.52
  4. Step 4: Simplify right side
    19,211.52x = 133,122,001.31
  5. Step 5: Solve for x
    x = 133,122,001.31/19,211.52
  6. Step 6: Final answer
    x = 6,929.28

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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.