Home / 28,731.25-43,111.46-13,152.79

Finding the Fourth Proportional to 28,731.25, 43,111.46 and 13,152.79

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Solution

The fourth proportional to 28,731.25, 43,111.46 and 13,152.79 is: 19,735.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731.25 : 43,111.46 = 13,152.79 : x
  2. Step 2: Convert to fraction form
    28,731.25/43,111.46 = 13,152.79/x
  3. Step 3: Cross multiply
    28,731.25x = 43,111.46 × 13,152.79
  4. Step 4: Simplify right side
    28,731.25x = 567,035,979.97
  5. Step 5: Solve for x
    x = 567,035,979.97/28,731.25
  6. Step 6: Final answer
    x = 19,735.86

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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.