Home / 19,591.81-27,036.75-10,639.46

Finding the Fourth Proportional to 19,591.81, 27,036.75 and 10,639.46

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Solution

The fourth proportional to 19,591.81, 27,036.75 and 10,639.46 is: 14,682.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,591.81 : 27,036.75 = 10,639.46 : x
  2. Step 2: Convert to fraction form
    19,591.81/27,036.75 = 10,639.46/x
  3. Step 3: Cross multiply
    19,591.81x = 27,036.75 × 10,639.46
  4. Step 4: Simplify right side
    19,591.81x = 287,656,420.16
  5. Step 5: Solve for x
    x = 287,656,420.16/19,591.81
  6. Step 6: Final answer
    x = 14,682.48

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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.