Home / 21,657.45-32,486.37-9,175.89

Finding the Fourth Proportional to 21,657.45, 32,486.37 and 9,175.89

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Solution

The fourth proportional to 21,657.45, 32,486.37 and 9,175.89 is: 13,763.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,657.45 : 32,486.37 = 9,175.89 : x
  2. Step 2: Convert to fraction form
    21,657.45/32,486.37 = 9,175.89/x
  3. Step 3: Cross multiply
    21,657.45x = 32,486.37 × 9,175.89
  4. Step 4: Simplify right side
    21,657.45x = 298,091,357.62
  5. Step 5: Solve for x
    x = 298,091,357.62/21,657.45
  6. Step 6: Final answer
    x = 13,763.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.