Home / 21,940.63-32,919.19-13,061.07

Finding the Fourth Proportional to 21,940.63, 32,919.19 and 13,061.07

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Solution

The fourth proportional to 21,940.63, 32,919.19 and 13,061.07 is: 19,596.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,940.63 : 32,919.19 = 13,061.07 : x
  2. Step 2: Convert to fraction form
    21,940.63/32,919.19 = 13,061.07/x
  3. Step 3: Cross multiply
    21,940.63x = 32,919.19 × 13,061.07
  4. Step 4: Simplify right side
    21,940.63x = 429,959,812.28
  5. Step 5: Solve for x
    x = 429,959,812.28/21,940.63
  6. Step 6: Final answer
    x = 19,596.51

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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.