Home / 21,542.25-29,726.02-11,980.58

Finding the Fourth Proportional to 21,542.25, 29,726.02 and 11,980.58

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Solution

The fourth proportional to 21,542.25, 29,726.02 and 11,980.58 is: 16,531.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,542.25 : 29,726.02 = 11,980.58 : x
  2. Step 2: Convert to fraction form
    21,542.25/29,726.02 = 11,980.58/x
  3. Step 3: Cross multiply
    21,542.25x = 29,726.02 × 11,980.58
  4. Step 4: Simplify right side
    21,542.25x = 356,134,960.69
  5. Step 5: Solve for x
    x = 356,134,960.69/21,542.25
  6. Step 6: Final answer
    x = 16,531.93

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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.