Home / 28,248.69-38,919.03-21,853.26

Finding the Fourth Proportional to 28,248.69, 38,919.03 and 21,853.26

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Solution

The fourth proportional to 28,248.69, 38,919.03 and 21,853.26 is: 30,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.69 : 38,919.03 = 21,853.26 : x
  2. Step 2: Convert to fraction form
    28,248.69/38,919.03 = 21,853.26/x
  3. Step 3: Cross multiply
    28,248.69x = 38,919.03 × 21,853.26
  4. Step 4: Simplify right side
    28,248.69x = 850,507,558.32
  5. Step 5: Solve for x
    x = 850,507,558.32/28,248.69
  6. Step 6: Final answer
    x = 30,107.86

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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.