Home / 19,887.81-27,444.44-10,934.78

Finding the Fourth Proportional to 19,887.81, 27,444.44 and 10,934.78

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Solution

The fourth proportional to 19,887.81, 27,444.44 and 10,934.78 is: 15,089.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.81 : 27,444.44 = 10,934.78 : x
  2. Step 2: Convert to fraction form
    19,887.81/27,444.44 = 10,934.78/x
  3. Step 3: Cross multiply
    19,887.81x = 27,444.44 × 10,934.78
  4. Step 4: Simplify right side
    19,887.81x = 300,098,913.62
  5. Step 5: Solve for x
    x = 300,098,913.62/19,887.81
  6. Step 6: Final answer
    x = 15,089.59

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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.