Home / 21,932.64-32,904.72-8,785.44

Finding the Fourth Proportional to 21,932.64, 32,904.72 and 8,785.44

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Solution

The fourth proportional to 21,932.64, 32,904.72 and 8,785.44 is: 13,180.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,932.64 : 32,904.72 = 8,785.44 : x
  2. Step 2: Convert to fraction form
    21,932.64/32,904.72 = 8,785.44/x
  3. Step 3: Cross multiply
    21,932.64x = 32,904.72 × 8,785.44
  4. Step 4: Simplify right side
    21,932.64x = 289,082,443.28
  5. Step 5: Solve for x
    x = 289,082,443.28/21,932.64
  6. Step 6: Final answer
    x = 13,180.47

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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.