Home / 28,912.02-39,895.38-16,336.78

Finding the Fourth Proportional to 28,912.02, 39,895.38 and 16,336.78

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Solution

The fourth proportional to 28,912.02, 39,895.38 and 16,336.78 is: 22,542.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,912.02 : 39,895.38 = 16,336.78 : x
  2. Step 2: Convert to fraction form
    28,912.02/39,895.38 = 16,336.78/x
  3. Step 3: Cross multiply
    28,912.02x = 39,895.38 × 16,336.78
  4. Step 4: Simplify right side
    28,912.02x = 651,762,046.08
  5. Step 5: Solve for x
    x = 651,762,046.08/28,912.02
  6. Step 6: Final answer
    x = 22,542.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.