Home / 21,417.26-32,079.11-8,899.34

Finding the Fourth Proportional to 21,417.26, 32,079.11 and 8,899.34

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Solution

The fourth proportional to 21,417.26, 32,079.11 and 8,899.34 is: 13,329.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,417.26 : 32,079.11 = 8,899.34 : x
  2. Step 2: Convert to fraction form
    21,417.26/32,079.11 = 8,899.34/x
  3. Step 3: Cross multiply
    21,417.26x = 32,079.11 × 8,899.34
  4. Step 4: Simplify right side
    21,417.26x = 285,483,047.65
  5. Step 5: Solve for x
    x = 285,483,047.65/21,417.26
  6. Step 6: Final answer
    x = 13,329.58

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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.