Home / 21,323.44-29,418.42-12,365.92

Finding the Fourth Proportional to 21,323.44, 29,418.42 and 12,365.92

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Solution

The fourth proportional to 21,323.44, 29,418.42 and 12,365.92 is: 17,060.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,323.44 : 29,418.42 = 12,365.92 : x
  2. Step 2: Convert to fraction form
    21,323.44/29,418.42 = 12,365.92/x
  3. Step 3: Cross multiply
    21,323.44x = 29,418.42 × 12,365.92
  4. Step 4: Simplify right side
    21,323.44x = 363,785,828.25
  5. Step 5: Solve for x
    x = 363,785,828.25/21,323.44
  6. Step 6: Final answer
    x = 17,060.37

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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.