Home / 28,957.56-39,963.21-16,858.29

Finding the Fourth Proportional to 28,957.56, 39,963.21 and 16,858.29

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Solution

The fourth proportional to 28,957.56, 39,963.21 and 16,858.29 is: 23,265.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,957.56 : 39,963.21 = 16,858.29 : x
  2. Step 2: Convert to fraction form
    28,957.56/39,963.21 = 16,858.29/x
  3. Step 3: Cross multiply
    28,957.56x = 39,963.21 × 16,858.29
  4. Step 4: Simplify right side
    28,957.56x = 673,711,383.51
  5. Step 5: Solve for x
    x = 673,711,383.51/28,957.56
  6. Step 6: Final answer
    x = 23,265.47

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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.