Home / 21,726.24-29,982.60-12,296.76

Finding the Fourth Proportional to 21,726.24, 29,982.60 and 12,296.76

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Solution

The fourth proportional to 21,726.24, 29,982.60 and 12,296.76 is: 16,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,726.24 : 29,982.60 = 12,296.76 : x
  2. Step 2: Convert to fraction form
    21,726.24/29,982.60 = 12,296.76/x
  3. Step 3: Cross multiply
    21,726.24x = 29,982.60 × 12,296.76
  4. Step 4: Simplify right side
    21,726.24x = 368,688,836.38
  5. Step 5: Solve for x
    x = 368,688,836.38/21,726.24
  6. Step 6: Final answer
    x = 16,969.75

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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.