Home / 21,835.60-32,749.80-8,687.08

Finding the Fourth Proportional to 21,835.60, 32,749.80 and 8,687.08

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Solution

The fourth proportional to 21,835.60, 32,749.80 and 8,687.08 is: 13,029.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,835.60 : 32,749.80 = 8,687.08 : x
  2. Step 2: Convert to fraction form
    21,835.60/32,749.80 = 8,687.08/x
  3. Step 3: Cross multiply
    21,835.60x = 32,749.80 × 8,687.08
  4. Step 4: Simplify right side
    21,835.60x = 284,500,132.58
  5. Step 5: Solve for x
    x = 284,500,132.58/21,835.60
  6. Step 6: Final answer
    x = 13,029.19

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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.