Home / 20,148.36-27,800.46-11,761.08

Finding the Fourth Proportional to 20,148.36, 27,800.46 and 11,761.08

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Solution

The fourth proportional to 20,148.36, 27,800.46 and 11,761.08 is: 16,227.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.36 : 27,800.46 = 11,761.08 : x
  2. Step 2: Convert to fraction form
    20,148.36/27,800.46 = 11,761.08/x
  3. Step 3: Cross multiply
    20,148.36x = 27,800.46 × 11,761.08
  4. Step 4: Simplify right side
    20,148.36x = 326,963,434.10
  5. Step 5: Solve for x
    x = 326,963,434.10/20,148.36
  6. Step 6: Final answer
    x = 16,227.79

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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.