Home / 21,567.36-32,328-15,392.64

Finding the Fourth Proportional to 21,567.36, 32,328 and 15,392.64

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Solution

The fourth proportional to 21,567.36, 32,328 and 15,392.64 is: 23,072.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,567.36 : 32,328 = 15,392.64 : x
  2. Step 2: Convert to fraction form
    21,567.36/32,328 = 15,392.64/x
  3. Step 3: Cross multiply
    21,567.36x = 32,328 × 15,392.64
  4. Step 4: Simplify right side
    21,567.36x = 497,613,265.92
  5. Step 5: Solve for x
    x = 497,613,265.92/21,567.36
  6. Step 6: Final answer
    x = 23,072.52

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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.