Home / 25,442.72-35,107.80-15,369.48

Finding the Fourth Proportional to 25,442.72, 35,107.80 and 15,369.48

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Solution

The fourth proportional to 25,442.72, 35,107.80 and 15,369.48 is: 21,207.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,442.72 : 35,107.80 = 15,369.48 : x
  2. Step 2: Convert to fraction form
    25,442.72/35,107.80 = 15,369.48/x
  3. Step 3: Cross multiply
    25,442.72x = 35,107.80 × 15,369.48
  4. Step 4: Simplify right side
    25,442.72x = 539,588,629.94
  5. Step 5: Solve for x
    x = 539,588,629.94/25,442.72
  6. Step 6: Final answer
    x = 21,207.98

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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.