Home / 31,624.25-43,650.59-20,876.99

Finding the Fourth Proportional to 31,624.25, 43,650.59 and 20,876.99

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Solution

The fourth proportional to 31,624.25, 43,650.59 and 20,876.99 is: 28,816.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,624.25 : 43,650.59 = 20,876.99 : x
  2. Step 2: Convert to fraction form
    31,624.25/43,650.59 = 20,876.99/x
  3. Step 3: Cross multiply
    31,624.25x = 43,650.59 × 20,876.99
  4. Step 4: Simplify right side
    31,624.25x = 911,292,608.29
  5. Step 5: Solve for x
    x = 911,292,608.29/31,624.25
  6. Step 6: Final answer
    x = 28,816.26

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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.