Home / 31,724.20-43,800.90-28,356.28

Finding the Fourth Proportional to 31,724.20, 43,800.90 and 28,356.28

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Solution

The fourth proportional to 31,724.20, 43,800.90 and 28,356.28 is: 39,150.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,724.20 : 43,800.90 = 28,356.28 : x
  2. Step 2: Convert to fraction form
    31,724.20/43,800.90 = 28,356.28/x
  3. Step 3: Cross multiply
    31,724.20x = 43,800.90 × 28,356.28
  4. Step 4: Simplify right side
    31,724.20x = 1,242,030,584.65
  5. Step 5: Solve for x
    x = 1,242,030,584.65/31,724.20
  6. Step 6: Final answer
    x = 39,150.89

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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.