Home / 19,345.80-29,023.56-7,657.50

Finding the Fourth Proportional to 19,345.80, 29,023.56 and 7,657.50

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Solution

The fourth proportional to 19,345.80, 29,023.56 and 7,657.50 is: 11,488.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,345.80 : 29,023.56 = 7,657.50 : x
  2. Step 2: Convert to fraction form
    19,345.80/29,023.56 = 7,657.50/x
  3. Step 3: Cross multiply
    19,345.80x = 29,023.56 × 7,657.50
  4. Step 4: Simplify right side
    19,345.80x = 222,247,910.70
  5. Step 5: Solve for x
    x = 222,247,910.70/19,345.80
  6. Step 6: Final answer
    x = 11,488.17

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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.