Home / 19,892.74-27,455.49-11,395.30

Finding the Fourth Proportional to 19,892.74, 27,455.49 and 11,395.30

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Solution

The fourth proportional to 19,892.74, 27,455.49 and 11,395.30 is: 15,727.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,892.74 : 27,455.49 = 11,395.30 : x
  2. Step 2: Convert to fraction form
    19,892.74/27,455.49 = 11,395.30/x
  3. Step 3: Cross multiply
    19,892.74x = 27,455.49 × 11,395.30
  4. Step 4: Simplify right side
    19,892.74x = 312,863,545.20
  5. Step 5: Solve for x
    x = 312,863,545.20/19,892.74
  6. Step 6: Final answer
    x = 15,727.52

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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.