Home / 28,241.80-38,969.64-16,908.58

Finding the Fourth Proportional to 28,241.80, 38,969.64 and 16,908.58

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Solution

The fourth proportional to 28,241.80, 38,969.64 and 16,908.58 is: 23,331.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,241.80 : 38,969.64 = 16,908.58 : x
  2. Step 2: Convert to fraction form
    28,241.80/38,969.64 = 16,908.58/x
  3. Step 3: Cross multiply
    28,241.80x = 38,969.64 × 16,908.58
  4. Step 4: Simplify right side
    28,241.80x = 658,921,275.51
  5. Step 5: Solve for x
    x = 658,921,275.51/28,241.80
  6. Step 6: Final answer
    x = 23,331.42

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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.