Home / 19,365.20-26,723.49-10,981.70

Finding the Fourth Proportional to 19,365.20, 26,723.49 and 10,981.70

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Solution

The fourth proportional to 19,365.20, 26,723.49 and 10,981.70 is: 15,154.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,365.20 : 26,723.49 = 10,981.70 : x
  2. Step 2: Convert to fraction form
    19,365.20/26,723.49 = 10,981.70/x
  3. Step 3: Cross multiply
    19,365.20x = 26,723.49 × 10,981.70
  4. Step 4: Simplify right side
    19,365.20x = 293,469,350.13
  5. Step 5: Solve for x
    x = 293,469,350.13/19,365.20
  6. Step 6: Final answer
    x = 15,154.47

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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.