Home / 21,622.32-32,434.45-6,628.36

Finding the Fourth Proportional to 21,622.32, 32,434.45 and 6,628.36

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Solution

The fourth proportional to 21,622.32, 32,434.45 and 6,628.36 is: 9,942.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.32 : 32,434.45 = 6,628.36 : x
  2. Step 2: Convert to fraction form
    21,622.32/32,434.45 = 6,628.36/x
  3. Step 3: Cross multiply
    21,622.32x = 32,434.45 × 6,628.36
  4. Step 4: Simplify right side
    21,622.32x = 214,987,177.86
  5. Step 5: Solve for x
    x = 214,987,177.86/21,622.32
  6. Step 6: Final answer
    x = 9,942.84

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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.