Home / 21,857.08-32,777.58-7,813.31

Finding the Fourth Proportional to 21,857.08, 32,777.58 and 7,813.31

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Solution

The fourth proportional to 21,857.08, 32,777.58 and 7,813.31 is: 11,717.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,857.08 : 32,777.58 = 7,813.31 : x
  2. Step 2: Convert to fraction form
    21,857.08/32,777.58 = 7,813.31/x
  3. Step 3: Cross multiply
    21,857.08x = 32,777.58 × 7,813.31
  4. Step 4: Simplify right side
    21,857.08x = 256,101,393.59
  5. Step 5: Solve for x
    x = 256,101,393.59/21,857.08
  6. Step 6: Final answer
    x = 11,717.09

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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.