Home / 20,107.02-27,750.78-19,221.06

Finding the Fourth Proportional to 20,107.02, 27,750.78 and 19,221.06

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Solution

The fourth proportional to 20,107.02, 27,750.78 and 19,221.06 is: 26,528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.02 : 27,750.78 = 19,221.06 : x
  2. Step 2: Convert to fraction form
    20,107.02/27,750.78 = 19,221.06/x
  3. Step 3: Cross multiply
    20,107.02x = 27,750.78 × 19,221.06
  4. Step 4: Simplify right side
    20,107.02x = 533,399,407.43
  5. Step 5: Solve for x
    x = 533,399,407.43/20,107.02
  6. Step 6: Final answer
    x = 26,528.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.