Home / 21,606.91-32,410.36-5,190.91

Finding the Fourth Proportional to 21,606.91, 32,410.36 and 5,190.91

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Solution

The fourth proportional to 21,606.91, 32,410.36 and 5,190.91 is: 7,786.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,606.91 : 32,410.36 = 5,190.91 : x
  2. Step 2: Convert to fraction form
    21,606.91/32,410.36 = 5,190.91/x
  3. Step 3: Cross multiply
    21,606.91x = 32,410.36 × 5,190.91
  4. Step 4: Simplify right side
    21,606.91x = 168,239,261.83
  5. Step 5: Solve for x
    x = 168,239,261.83/21,606.91
  6. Step 6: Final answer
    x = 7,786.36

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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.