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Finding the Fourth Proportional to 19,348.80, 29,088.81 and 15,449.88

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Solution

The fourth proportional to 19,348.80, 29,088.81 and 15,449.88 is: 23,227.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,348.80 : 29,088.81 = 15,449.88 : x
  2. Step 2: Convert to fraction form
    19,348.80/29,088.81 = 15,449.88/x
  3. Step 3: Cross multiply
    19,348.80x = 29,088.81 × 15,449.88
  4. Step 4: Simplify right side
    19,348.80x = 449,418,623.84
  5. Step 5: Solve for x
    x = 449,418,623.84/19,348.80
  6. Step 6: Final answer
    x = 23,227.21

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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.