Home / 20,025.96-30,038.64-6,887.56

Finding the Fourth Proportional to 20,025.96, 30,038.64 and 6,887.56

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Solution

The fourth proportional to 20,025.96, 30,038.64 and 6,887.56 is: 10,331.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.96 : 30,038.64 = 6,887.56 : x
  2. Step 2: Convert to fraction form
    20,025.96/30,038.64 = 6,887.56/x
  3. Step 3: Cross multiply
    20,025.96x = 30,038.64 × 6,887.56
  4. Step 4: Simplify right side
    20,025.96x = 206,892,935.32
  5. Step 5: Solve for x
    x = 206,892,935.32/20,025.96
  6. Step 6: Final answer
    x = 10,331.24

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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.