Home / 21,192.52-29,243.74-12,577.22

Finding the Fourth Proportional to 21,192.52, 29,243.74 and 12,577.22

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Solution

The fourth proportional to 21,192.52, 29,243.74 and 12,577.22 is: 17,355.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.52 : 29,243.74 = 12,577.22 : x
  2. Step 2: Convert to fraction form
    21,192.52/29,243.74 = 12,577.22/x
  3. Step 3: Cross multiply
    21,192.52x = 29,243.74 × 12,577.22
  4. Step 4: Simplify right side
    21,192.52x = 367,804,951.60
  5. Step 5: Solve for x
    x = 367,804,951.60/21,192.52
  6. Step 6: Final answer
    x = 17,355.41

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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.