Home / 21,182.24-29,230.50-11,621.91

Finding the Fourth Proportional to 21,182.24, 29,230.50 and 11,621.91

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Solution

The fourth proportional to 21,182.24, 29,230.50 and 11,621.91 is: 16,037.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.24 : 29,230.50 = 11,621.91 : x
  2. Step 2: Convert to fraction form
    21,182.24/29,230.50 = 11,621.91/x
  3. Step 3: Cross multiply
    21,182.24x = 29,230.50 × 11,621.91
  4. Step 4: Simplify right side
    21,182.24x = 339,714,393.45
  5. Step 5: Solve for x
    x = 339,714,393.45/21,182.24
  6. Step 6: Final answer
    x = 16,037.70

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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.