Home / 21,785.22-32,622.39-15,216.02

Finding the Fourth Proportional to 21,785.22, 32,622.39 and 15,216.02

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Solution

The fourth proportional to 21,785.22, 32,622.39 and 15,216.02 is: 22,785.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,785.22 : 32,622.39 = 15,216.02 : x
  2. Step 2: Convert to fraction form
    21,785.22/32,622.39 = 15,216.02/x
  3. Step 3: Cross multiply
    21,785.22x = 32,622.39 × 15,216.02
  4. Step 4: Simplify right side
    21,785.22x = 496,382,775.58
  5. Step 5: Solve for x
    x = 496,382,775.58/21,785.22
  6. Step 6: Final answer
    x = 22,785.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.