Home / 28,540.18-39,383.31-15,962.50

Finding the Fourth Proportional to 28,540.18, 39,383.31 and 15,962.50

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Solution

The fourth proportional to 28,540.18, 39,383.31 and 15,962.50 is: 22,027.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540.18 : 39,383.31 = 15,962.50 : x
  2. Step 2: Convert to fraction form
    28,540.18/39,383.31 = 15,962.50/x
  3. Step 3: Cross multiply
    28,540.18x = 39,383.31 × 15,962.50
  4. Step 4: Simplify right side
    28,540.18x = 628,656,085.88
  5. Step 5: Solve for x
    x = 628,656,085.88/28,540.18
  6. Step 6: Final answer
    x = 22,027.05

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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.