Home / 20,377.80-28,041.66-18,025.56

Finding the Fourth Proportional to 20,377.80, 28,041.66 and 18,025.56

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Solution

The fourth proportional to 20,377.80, 28,041.66 and 18,025.56 is: 24,804.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,377.80 : 28,041.66 = 18,025.56 : x
  2. Step 2: Convert to fraction form
    20,377.80/28,041.66 = 18,025.56/x
  3. Step 3: Cross multiply
    20,377.80x = 28,041.66 × 18,025.56
  4. Step 4: Simplify right side
    20,377.80x = 505,466,624.83
  5. Step 5: Solve for x
    x = 505,466,624.83/20,377.80
  6. Step 6: Final answer
    x = 24,804.77

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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.