Home / 28,376.52-39,159.21-15,801.27

Finding the Fourth Proportional to 28,376.52, 39,159.21 and 15,801.27

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Solution

The fourth proportional to 28,376.52, 39,159.21 and 15,801.27 is: 21,805.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,376.52 : 39,159.21 = 15,801.27 : x
  2. Step 2: Convert to fraction form
    28,376.52/39,159.21 = 15,801.27/x
  3. Step 3: Cross multiply
    28,376.52x = 39,159.21 × 15,801.27
  4. Step 4: Simplify right side
    28,376.52x = 618,765,250.20
  5. Step 5: Solve for x
    x = 618,765,250.20/28,376.52
  6. Step 6: Final answer
    x = 21,805.54

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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.