Home / 28,241.58-38,973.90-15,495.42

Finding the Fourth Proportional to 28,241.58, 38,973.90 and 15,495.42

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Solution

The fourth proportional to 28,241.58, 38,973.90 and 15,495.42 is: 21,383.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,241.58 : 38,973.90 = 15,495.42 : x
  2. Step 2: Convert to fraction form
    28,241.58/38,973.90 = 15,495.42/x
  3. Step 3: Cross multiply
    28,241.58x = 38,973.90 × 15,495.42
  4. Step 4: Simplify right side
    28,241.58x = 603,916,949.54
  5. Step 5: Solve for x
    x = 603,916,949.54/28,241.58
  6. Step 6: Final answer
    x = 21,383.96

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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.