Home / 28,015.72-38,644.56-16,677.64

Finding the Fourth Proportional to 28,015.72, 38,644.56 and 16,677.64

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Solution

The fourth proportional to 28,015.72, 38,644.56 and 16,677.64 is: 23,004.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,015.72 : 38,644.56 = 16,677.64 : x
  2. Step 2: Convert to fraction form
    28,015.72/38,644.56 = 16,677.64/x
  3. Step 3: Cross multiply
    28,015.72x = 38,644.56 × 16,677.64
  4. Step 4: Simplify right side
    28,015.72x = 644,500,059.64
  5. Step 5: Solve for x
    x = 644,500,059.64/28,015.72
  6. Step 6: Final answer
    x = 23,004.94

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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.