Home / 21,605.74-32,389.36-8,467.26

Finding the Fourth Proportional to 21,605.74, 32,389.36 and 8,467.26

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Solution

The fourth proportional to 21,605.74, 32,389.36 and 8,467.26 is: 12,693.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,605.74 : 32,389.36 = 8,467.26 : x
  2. Step 2: Convert to fraction form
    21,605.74/32,389.36 = 8,467.26/x
  3. Step 3: Cross multiply
    21,605.74x = 32,389.36 × 8,467.26
  4. Step 4: Simplify right side
    21,605.74x = 274,249,132.35
  5. Step 5: Solve for x
    x = 274,249,132.35/21,605.74
  6. Step 6: Final answer
    x = 12,693.35

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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.