Home / 21,486.08-32,142.97-17,795.50

Finding the Fourth Proportional to 21,486.08, 32,142.97 and 17,795.50

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Solution

The fourth proportional to 21,486.08, 32,142.97 and 17,795.50 is: 26,621.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.08 : 32,142.97 = 17,795.50 : x
  2. Step 2: Convert to fraction form
    21,486.08/32,142.97 = 17,795.50/x
  3. Step 3: Cross multiply
    21,486.08x = 32,142.97 × 17,795.50
  4. Step 4: Simplify right side
    21,486.08x = 572,000,222.64
  5. Step 5: Solve for x
    x = 572,000,222.64/21,486.08
  6. Step 6: Final answer
    x = 26,621.90

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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.