Home / 21,571.67-29,763.08-12,621.37

Finding the Fourth Proportional to 21,571.67, 29,763.08 and 12,621.37

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Solution

The fourth proportional to 21,571.67, 29,763.08 and 12,621.37 is: 17,414.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.67 : 29,763.08 = 12,621.37 : x
  2. Step 2: Convert to fraction form
    21,571.67/29,763.08 = 12,621.37/x
  3. Step 3: Cross multiply
    21,571.67x = 29,763.08 × 12,621.37
  4. Step 4: Simplify right side
    21,571.67x = 375,650,696.20
  5. Step 5: Solve for x
    x = 375,650,696.20/21,571.67
  6. Step 6: Final answer
    x = 17,414.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.