Home / 28,180.86-42,289.74-10,650.69

Finding the Fourth Proportional to 28,180.86, 42,289.74 and 10,650.69

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Solution

The fourth proportional to 28,180.86, 42,289.74 and 10,650.69 is: 15,983.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180.86 : 42,289.74 = 10,650.69 : x
  2. Step 2: Convert to fraction form
    28,180.86/42,289.74 = 10,650.69/x
  3. Step 3: Cross multiply
    28,180.86x = 42,289.74 × 10,650.69
  4. Step 4: Simplify right side
    28,180.86x = 450,414,910.92
  5. Step 5: Solve for x
    x = 450,414,910.92/28,180.86
  6. Step 6: Final answer
    x = 15,983.01

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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.