Home / 19,435.82-26,836.49-15,179.45

Finding the Fourth Proportional to 19,435.82, 26,836.49 and 15,179.45

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Solution

The fourth proportional to 19,435.82, 26,836.49 and 15,179.45 is: 20,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,435.82 : 26,836.49 = 15,179.45 : x
  2. Step 2: Convert to fraction form
    19,435.82/26,836.49 = 15,179.45/x
  3. Step 3: Cross multiply
    19,435.82x = 26,836.49 × 15,179.45
  4. Step 4: Simplify right side
    19,435.82x = 407,363,061.90
  5. Step 5: Solve for x
    x = 407,363,061.90/19,435.82
  6. Step 6: Final answer
    x = 20,959.40

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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.