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Finding the Fourth Proportional to 69,332.88, 103,999.63 and 21,948.21

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Solution

The fourth proportional to 69,332.88, 103,999.63 and 21,948.21 is: 32,922.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,332.88 : 103,999.63 = 21,948.21 : x
  2. Step 2: Convert to fraction form
    69,332.88/103,999.63 = 21,948.21/x
  3. Step 3: Cross multiply
    69,332.88x = 103,999.63 × 21,948.21
  4. Step 4: Simplify right side
    69,332.88x = 2,282,605,274.29
  5. Step 5: Solve for x
    x = 2,282,605,274.29/69,332.88
  6. Step 6: Final answer
    x = 32,922.41

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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.