Home / 28,654.40-39,541.09-15,906.58

Finding the Fourth Proportional to 28,654.40, 39,541.09 and 15,906.58

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Solution

The fourth proportional to 28,654.40, 39,541.09 and 15,906.58 is: 21,949.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,654.40 : 39,541.09 = 15,906.58 : x
  2. Step 2: Convert to fraction form
    28,654.40/39,541.09 = 15,906.58/x
  3. Step 3: Cross multiply
    28,654.40x = 39,541.09 × 15,906.58
  4. Step 4: Simplify right side
    28,654.40x = 628,963,511.37
  5. Step 5: Solve for x
    x = 628,963,511.37/28,654.40
  6. Step 6: Final answer
    x = 21,949.98

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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.