Home / 19,973.45-27,679.87-19,691.57

Finding the Fourth Proportional to 19,973.45, 27,679.87 and 19,691.57

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Solution

The fourth proportional to 19,973.45, 27,679.87 and 19,691.57 is: 27,289.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,973.45 : 27,679.87 = 19,691.57 : x
  2. Step 2: Convert to fraction form
    19,973.45/27,679.87 = 19,691.57/x
  3. Step 3: Cross multiply
    19,973.45x = 27,679.87 × 19,691.57
  4. Step 4: Simplify right side
    19,973.45x = 545,059,999.24
  5. Step 5: Solve for x
    x = 545,059,999.24/19,973.45
  6. Step 6: Final answer
    x = 27,289.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.