Home / 20,187.24-30,280.58-7,039.56

Finding the Fourth Proportional to 20,187.24, 30,280.58 and 7,039.56

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Solution

The fourth proportional to 20,187.24, 30,280.58 and 7,039.56 is: 10,559.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.24 : 30,280.58 = 7,039.56 : x
  2. Step 2: Convert to fraction form
    20,187.24/30,280.58 = 7,039.56/x
  3. Step 3: Cross multiply
    20,187.24x = 30,280.58 × 7,039.56
  4. Step 4: Simplify right side
    20,187.24x = 213,161,959.74
  5. Step 5: Solve for x
    x = 213,161,959.74/20,187.24
  6. Step 6: Final answer
    x = 10,559.24

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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.