Home / 19,591.76-27,036.81-10,639.34

Finding the Fourth Proportional to 19,591.76, 27,036.81 and 10,639.34

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Solution

The fourth proportional to 19,591.76, 27,036.81 and 10,639.34 is: 14,682.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,591.76 : 27,036.81 = 10,639.34 : x
  2. Step 2: Convert to fraction form
    19,591.76/27,036.81 = 10,639.34/x
  3. Step 3: Cross multiply
    19,591.76x = 27,036.81 × 10,639.34
  4. Step 4: Simplify right side
    19,591.76x = 287,653,814.11
  5. Step 5: Solve for x
    x = 287,653,814.11/19,591.76
  6. Step 6: Final answer
    x = 14,682.39

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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.