Home / 16,875.92-25,315.90-7,021.86

Finding the Fourth Proportional to 16,875.92, 25,315.90 and 7,021.86

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Solution

The fourth proportional to 16,875.92, 25,315.90 and 7,021.86 is: 10,533.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,875.92 : 25,315.90 = 7,021.86 : x
  2. Step 2: Convert to fraction form
    16,875.92/25,315.90 = 7,021.86/x
  3. Step 3: Cross multiply
    16,875.92x = 25,315.90 × 7,021.86
  4. Step 4: Simplify right side
    16,875.92x = 177,764,705.57
  5. Step 5: Solve for x
    x = 177,764,705.57/16,875.92
  6. Step 6: Final answer
    x = 10,533.63

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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.