Home / 20,371.77-30,557.67-5,580.81

Finding the Fourth Proportional to 20,371.77, 30,557.67 and 5,580.81

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Solution

The fourth proportional to 20,371.77, 30,557.67 and 5,580.81 is: 8,371.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371.77 : 30,557.67 = 5,580.81 : x
  2. Step 2: Convert to fraction form
    20,371.77/30,557.67 = 5,580.81/x
  3. Step 3: Cross multiply
    20,371.77x = 30,557.67 × 5,580.81
  4. Step 4: Simplify right side
    20,371.77x = 170,536,550.31
  5. Step 5: Solve for x
    x = 170,536,550.31/20,371.77
  6. Step 6: Final answer
    x = 8,371.22

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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.