Home / 28,197.37-42,299.94-9,478.86

Finding the Fourth Proportional to 28,197.37, 42,299.94 and 9,478.86

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Solution

The fourth proportional to 28,197.37, 42,299.94 and 9,478.86 is: 14,219.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,197.37 : 42,299.94 = 9,478.86 : x
  2. Step 2: Convert to fraction form
    28,197.37/42,299.94 = 9,478.86/x
  3. Step 3: Cross multiply
    28,197.37x = 42,299.94 × 9,478.86
  4. Step 4: Simplify right side
    28,197.37x = 400,955,209.27
  5. Step 5: Solve for x
    x = 400,955,209.27/28,197.37
  6. Step 6: Final answer
    x = 14,219.60

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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.