Home / 21,291.86-29,382.80-11,601.27

Finding the Fourth Proportional to 21,291.86, 29,382.80 and 11,601.27

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Solution

The fourth proportional to 21,291.86, 29,382.80 and 11,601.27 is: 16,009.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,291.86 : 29,382.80 = 11,601.27 : x
  2. Step 2: Convert to fraction form
    21,291.86/29,382.80 = 11,601.27/x
  3. Step 3: Cross multiply
    21,291.86x = 29,382.80 × 11,601.27
  4. Step 4: Simplify right side
    21,291.86x = 340,877,591.24
  5. Step 5: Solve for x
    x = 340,877,591.24/21,291.86
  6. Step 6: Final answer
    x = 16,009.76

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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.