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Finding the Fourth Proportional to 33,124.60, 49,686.90 and 21,314.80

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Solution

The fourth proportional to 33,124.60, 49,686.90 and 21,314.80 is: 31,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,124.60 : 49,686.90 = 21,314.80 : x
  2. Step 2: Convert to fraction form
    33,124.60/49,686.90 = 21,314.80/x
  3. Step 3: Cross multiply
    33,124.60x = 49,686.90 × 21,314.80
  4. Step 4: Simplify right side
    33,124.60x = 1,059,066,336.12
  5. Step 5: Solve for x
    x = 1,059,066,336.12/33,124.60
  6. Step 6: Final answer
    x = 31,972.20

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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.