Home / 28,540.40-39,388.08-16,444.64

Finding the Fourth Proportional to 28,540.40, 39,388.08 and 16,444.64

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Solution

The fourth proportional to 28,540.40, 39,388.08 and 16,444.64 is: 22,694.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540.40 : 39,388.08 = 16,444.64 : x
  2. Step 2: Convert to fraction form
    28,540.40/39,388.08 = 16,444.64/x
  3. Step 3: Cross multiply
    28,540.40x = 39,388.08 × 16,444.64
  4. Step 4: Simplify right side
    28,540.40x = 647,722,795.89
  5. Step 5: Solve for x
    x = 647,722,795.89/28,540.40
  6. Step 6: Final answer
    x = 22,694.94

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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.