Home / 19,947.92-27,531.96-11,455.04

Finding the Fourth Proportional to 19,947.92, 27,531.96 and 11,455.04

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Solution

The fourth proportional to 19,947.92, 27,531.96 and 11,455.04 is: 15,810.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,947.92 : 27,531.96 = 11,455.04 : x
  2. Step 2: Convert to fraction form
    19,947.92/27,531.96 = 11,455.04/x
  3. Step 3: Cross multiply
    19,947.92x = 27,531.96 × 11,455.04
  4. Step 4: Simplify right side
    19,947.92x = 315,379,703.08
  5. Step 5: Solve for x
    x = 315,379,703.08/19,947.92
  6. Step 6: Final answer
    x = 15,810.15

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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.