Home / 20,025.40-30,039.36-6,875.92

Finding the Fourth Proportional to 20,025.40, 30,039.36 and 6,875.92

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Solution

The fourth proportional to 20,025.40, 30,039.36 and 6,875.92 is: 10,314.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.40 : 30,039.36 = 6,875.92 : x
  2. Step 2: Convert to fraction form
    20,025.40/30,039.36 = 6,875.92/x
  3. Step 3: Cross multiply
    20,025.40x = 30,039.36 × 6,875.92
  4. Step 4: Simplify right side
    20,025.40x = 206,548,236.21
  5. Step 5: Solve for x
    x = 206,548,236.21/20,025.40
  6. Step 6: Final answer
    x = 10,314.31

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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.