Home / 21,228.77-29,296.53-11,797.13

Finding the Fourth Proportional to 21,228.77, 29,296.53 and 11,797.13

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Solution

The fourth proportional to 21,228.77, 29,296.53 and 11,797.13 is: 16,280.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,228.77 : 29,296.53 = 11,797.13 : x
  2. Step 2: Convert to fraction form
    21,228.77/29,296.53 = 11,797.13/x
  3. Step 3: Cross multiply
    21,228.77x = 29,296.53 × 11,797.13
  4. Step 4: Simplify right side
    21,228.77x = 345,614,826.48
  5. Step 5: Solve for x
    x = 345,614,826.48/21,228.77
  6. Step 6: Final answer
    x = 16,280.50

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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.