Home / 28,149.86-42,224.83-9,426.44

Finding the Fourth Proportional to 28,149.86, 42,224.83 and 9,426.44

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Solution

The fourth proportional to 28,149.86, 42,224.83 and 9,426.44 is: 14,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,149.86 : 42,224.83 = 9,426.44 : x
  2. Step 2: Convert to fraction form
    28,149.86/42,224.83 = 9,426.44/x
  3. Step 3: Cross multiply
    28,149.86x = 42,224.83 × 9,426.44
  4. Step 4: Simplify right side
    28,149.86x = 398,029,908.50
  5. Step 5: Solve for x
    x = 398,029,908.50/28,149.86
  6. Step 6: Final answer
    x = 14,139.68

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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.