Home / 28,976.61-43,474.23-13,187.28

Finding the Fourth Proportional to 28,976.61, 43,474.23 and 13,187.28

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Solution

The fourth proportional to 28,976.61, 43,474.23 and 13,187.28 is: 19,785.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,976.61 : 43,474.23 = 13,187.28 : x
  2. Step 2: Convert to fraction form
    28,976.61/43,474.23 = 13,187.28/x
  3. Step 3: Cross multiply
    28,976.61x = 43,474.23 × 13,187.28
  4. Step 4: Simplify right side
    28,976.61x = 573,306,843.79
  5. Step 5: Solve for x
    x = 573,306,843.79/28,976.61
  6. Step 6: Final answer
    x = 19,785.16

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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.