Home / 19,830.17-27,363.60-11,872.19

Finding the Fourth Proportional to 19,830.17, 27,363.60 and 11,872.19

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Solution

The fourth proportional to 19,830.17, 27,363.60 and 11,872.19 is: 16,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.17 : 27,363.60 = 11,872.19 : x
  2. Step 2: Convert to fraction form
    19,830.17/27,363.60 = 11,872.19/x
  3. Step 3: Cross multiply
    19,830.17x = 27,363.60 × 11,872.19
  4. Step 4: Simplify right side
    19,830.17x = 324,865,721.47
  5. Step 5: Solve for x
    x = 324,865,721.47/19,830.17
  6. Step 6: Final answer
    x = 16,382.40

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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.