Home / 28,036.71-38,678.97-17,963.01

Finding the Fourth Proportional to 28,036.71, 38,678.97 and 17,963.01

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Solution

The fourth proportional to 28,036.71, 38,678.97 and 17,963.01 is: 24,781.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.71 : 38,678.97 = 17,963.01 : x
  2. Step 2: Convert to fraction form
    28,036.71/38,678.97 = 17,963.01/x
  3. Step 3: Cross multiply
    28,036.71x = 38,678.97 × 17,963.01
  4. Step 4: Simplify right side
    28,036.71x = 694,790,724.90
  5. Step 5: Solve for x
    x = 694,790,724.90/28,036.71
  6. Step 6: Final answer
    x = 24,781.46

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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.