Home / 26,880.76-40,291.26-20,285.56

Finding the Fourth Proportional to 26,880.76, 40,291.26 and 20,285.56

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Solution

The fourth proportional to 26,880.76, 40,291.26 and 20,285.56 is: 30,405.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,880.76 : 40,291.26 = 20,285.56 : x
  2. Step 2: Convert to fraction form
    26,880.76/40,291.26 = 20,285.56/x
  3. Step 3: Cross multiply
    26,880.76x = 40,291.26 × 20,285.56
  4. Step 4: Simplify right side
    26,880.76x = 817,330,772.21
  5. Step 5: Solve for x
    x = 817,330,772.21/26,880.76
  6. Step 6: Final answer
    x = 30,405.79

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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.