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Finding the Fourth Proportional to 69,215.98, 103,848.06 and 21,838.38

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Solution

The fourth proportional to 69,215.98, 103,848.06 and 21,838.38 is: 32,765.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,215.98 : 103,848.06 = 21,838.38 : x
  2. Step 2: Convert to fraction form
    69,215.98/103,848.06 = 21,838.38/x
  3. Step 3: Cross multiply
    69,215.98x = 103,848.06 × 21,838.38
  4. Step 4: Simplify right side
    69,215.98x = 2,267,873,287.35
  5. Step 5: Solve for x
    x = 2,267,873,287.35/69,215.98
  6. Step 6: Final answer
    x = 32,765.17

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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.