Home / 28,017.59-38,664.27-15,442.34

Finding the Fourth Proportional to 28,017.59, 38,664.27 and 15,442.34

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Solution

The fourth proportional to 28,017.59, 38,664.27 and 15,442.34 is: 21,310.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.59 : 38,664.27 = 15,442.34 : x
  2. Step 2: Convert to fraction form
    28,017.59/38,664.27 = 15,442.34/x
  3. Step 3: Cross multiply
    28,017.59x = 38,664.27 × 15,442.34
  4. Step 4: Simplify right side
    28,017.59x = 597,066,609.87
  5. Step 5: Solve for x
    x = 597,066,609.87/28,017.59
  6. Step 6: Final answer
    x = 21,310.42

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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.