Home / 21,851.35-32,774.86-8,700.19

Finding the Fourth Proportional to 21,851.35, 32,774.86 and 8,700.19

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Solution

The fourth proportional to 21,851.35, 32,774.86 and 8,700.19 is: 13,049.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,851.35 : 32,774.86 = 8,700.19 : x
  2. Step 2: Convert to fraction form
    21,851.35/32,774.86 = 8,700.19/x
  3. Step 3: Cross multiply
    21,851.35x = 32,774.86 × 8,700.19
  4. Step 4: Simplify right side
    21,851.35x = 285,147,509.22
  5. Step 5: Solve for x
    x = 285,147,509.22/21,851.35
  6. Step 6: Final answer
    x = 13,049.42

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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.