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Finding the Fourth Proportional to 21,199.44, 31,799.16 and 8,048.68

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Solution

The fourth proportional to 21,199.44, 31,799.16 and 8,048.68 is: 12,073.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,199.44 : 31,799.16 = 8,048.68 : x
  2. Step 2: Convert to fraction form
    21,199.44/31,799.16 = 8,048.68/x
  3. Step 3: Cross multiply
    21,199.44x = 31,799.16 × 8,048.68
  4. Step 4: Simplify right side
    21,199.44x = 255,941,263.11
  5. Step 5: Solve for x
    x = 255,941,263.11/21,199.44
  6. Step 6: Final answer
    x = 12,073.02

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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.