Home / 19,797.79-29,687.40-11,480.17

Finding the Fourth Proportional to 19,797.79, 29,687.40 and 11,480.17

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Solution

The fourth proportional to 19,797.79, 29,687.40 and 11,480.17 is: 17,214.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,797.79 : 29,687.40 = 11,480.17 : x
  2. Step 2: Convert to fraction form
    19,797.79/29,687.40 = 11,480.17/x
  3. Step 3: Cross multiply
    19,797.79x = 29,687.40 × 11,480.17
  4. Step 4: Simplify right side
    19,797.79x = 340,816,398.86
  5. Step 5: Solve for x
    x = 340,816,398.86/19,797.79
  6. Step 6: Final answer
    x = 17,214.87

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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.