Home / 19,935.50-27,520.97-15,449.18

Finding the Fourth Proportional to 19,935.50, 27,520.97 and 15,449.18

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Solution

The fourth proportional to 19,935.50, 27,520.97 and 15,449.18 is: 21,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935.50 : 27,520.97 = 15,449.18 : x
  2. Step 2: Convert to fraction form
    19,935.50/27,520.97 = 15,449.18/x
  3. Step 3: Cross multiply
    19,935.50x = 27,520.97 × 15,449.18
  4. Step 4: Simplify right side
    19,935.50x = 425,176,204.45
  5. Step 5: Solve for x
    x = 425,176,204.45/19,935.50
  6. Step 6: Final answer
    x = 21,327.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.