Home / 28,363.52-39,141.27-15,788.27

Finding the Fourth Proportional to 28,363.52, 39,141.27 and 15,788.27

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Solution

The fourth proportional to 28,363.52, 39,141.27 and 15,788.27 is: 21,787.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,363.52 : 39,141.27 = 15,788.27 : x
  2. Step 2: Convert to fraction form
    28,363.52/39,141.27 = 15,788.27/x
  3. Step 3: Cross multiply
    28,363.52x = 39,141.27 × 15,788.27
  4. Step 4: Simplify right side
    28,363.52x = 617,972,743.20
  5. Step 5: Solve for x
    x = 617,972,743.20/28,363.52
  6. Step 6: Final answer
    x = 21,787.59

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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.