Home / 21,684.42-32,499.99-12,332.25

Finding the Fourth Proportional to 21,684.42, 32,499.99 and 12,332.25

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Solution

The fourth proportional to 21,684.42, 32,499.99 and 12,332.25 is: 18,483.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,684.42 : 32,499.99 = 12,332.25 : x
  2. Step 2: Convert to fraction form
    21,684.42/32,499.99 = 12,332.25/x
  3. Step 3: Cross multiply
    21,684.42x = 32,499.99 × 12,332.25
  4. Step 4: Simplify right side
    21,684.42x = 400,798,001.68
  5. Step 5: Solve for x
    x = 400,798,001.68/21,684.42
  6. Step 6: Final answer
    x = 18,483.22

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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.