Home / 19,805.18-27,331.83-10,853.46

Finding the Fourth Proportional to 19,805.18, 27,331.83 and 10,853.46

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Solution

The fourth proportional to 19,805.18, 27,331.83 and 10,853.46 is: 14,978.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.18 : 27,331.83 = 10,853.46 : x
  2. Step 2: Convert to fraction form
    19,805.18/27,331.83 = 10,853.46/x
  3. Step 3: Cross multiply
    19,805.18x = 27,331.83 × 10,853.46
  4. Step 4: Simplify right side
    19,805.18x = 296,644,923.63
  5. Step 5: Solve for x
    x = 296,644,923.63/19,805.18
  6. Step 6: Final answer
    x = 14,978.15

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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.