Home / 21,511.66-29,686.46-11,952.41

Finding the Fourth Proportional to 21,511.66, 29,686.46 and 11,952.41

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Solution

The fourth proportional to 21,511.66, 29,686.46 and 11,952.41 is: 16,494.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,511.66 : 29,686.46 = 11,952.41 : x
  2. Step 2: Convert to fraction form
    21,511.66/29,686.46 = 11,952.41/x
  3. Step 3: Cross multiply
    21,511.66x = 29,686.46 × 11,952.41
  4. Step 4: Simplify right side
    21,511.66x = 354,824,681.61
  5. Step 5: Solve for x
    x = 354,824,681.61/21,511.66
  6. Step 6: Final answer
    x = 16,494.53

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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.