Home / 19,876.39-27,429.10-10,923.70

Finding the Fourth Proportional to 19,876.39, 27,429.10 and 10,923.70

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Solution

The fourth proportional to 19,876.39, 27,429.10 and 10,923.70 is: 15,074.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,876.39 : 27,429.10 = 10,923.70 : x
  2. Step 2: Convert to fraction form
    19,876.39/27,429.10 = 10,923.70/x
  3. Step 3: Cross multiply
    19,876.39x = 27,429.10 × 10,923.70
  4. Step 4: Simplify right side
    19,876.39x = 299,627,334.09
  5. Step 5: Solve for x
    x = 299,627,334.09/19,876.39
  6. Step 6: Final answer
    x = 15,074.53

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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.