Home / 21,110.24-29,132.31-11,679.41

Finding the Fourth Proportional to 21,110.24, 29,132.31 and 11,679.41

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Solution

The fourth proportional to 21,110.24, 29,132.31 and 11,679.41 is: 16,117.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,110.24 : 29,132.31 = 11,679.41 : x
  2. Step 2: Convert to fraction form
    21,110.24/29,132.31 = 11,679.41/x
  3. Step 3: Cross multiply
    21,110.24x = 29,132.31 × 11,679.41
  4. Step 4: Simplify right side
    21,110.24x = 340,248,192.74
  5. Step 5: Solve for x
    x = 340,248,192.74/21,110.24
  6. Step 6: Final answer
    x = 16,117.68

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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.