Home / 28,730.87-43,007.21-15,550.55

Finding the Fourth Proportional to 28,730.87, 43,007.21 and 15,550.55

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Solution

The fourth proportional to 28,730.87, 43,007.21 and 15,550.55 is: 23,277.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,730.87 : 43,007.21 = 15,550.55 : x
  2. Step 2: Convert to fraction form
    28,730.87/43,007.21 = 15,550.55/x
  3. Step 3: Cross multiply
    28,730.87x = 43,007.21 × 15,550.55
  4. Step 4: Simplify right side
    28,730.87x = 668,785,691.71
  5. Step 5: Solve for x
    x = 668,785,691.71/28,730.87
  6. Step 6: Final answer
    x = 23,277.60

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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.