Home / 28,896.64-39,877.12-16,321.44

Finding the Fourth Proportional to 28,896.64, 39,877.12 and 16,321.44

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Solution

The fourth proportional to 28,896.64, 39,877.12 and 16,321.44 is: 22,523.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,896.64 : 39,877.12 = 16,321.44 : x
  2. Step 2: Convert to fraction form
    28,896.64/39,877.12 = 16,321.44/x
  3. Step 3: Cross multiply
    28,896.64x = 39,877.12 × 16,321.44
  4. Step 4: Simplify right side
    28,896.64x = 650,852,021.45
  5. Step 5: Solve for x
    x = 650,852,021.45/28,896.64
  6. Step 6: Final answer
    x = 22,523.45

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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.