Home / 19,439.40-26,822.61-10,940.39

Finding the Fourth Proportional to 19,439.40, 26,822.61 and 10,940.39

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Solution

The fourth proportional to 19,439.40, 26,822.61 and 10,940.39 is: 15,095.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,439.40 : 26,822.61 = 10,940.39 : x
  2. Step 2: Convert to fraction form
    19,439.40/26,822.61 = 10,940.39/x
  3. Step 3: Cross multiply
    19,439.40x = 26,822.61 × 10,940.39
  4. Step 4: Simplify right side
    19,439.40x = 293,449,814.22
  5. Step 5: Solve for x
    x = 293,449,814.22/19,439.40
  6. Step 6: Final answer
    x = 15,095.62

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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.