Home / 25,379.54-35,027.80-15,309.43

Finding the Fourth Proportional to 25,379.54, 35,027.80 and 15,309.43

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Solution

The fourth proportional to 25,379.54, 35,027.80 and 15,309.43 is: 21,129.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,379.54 : 35,027.80 = 15,309.43 : x
  2. Step 2: Convert to fraction form
    25,379.54/35,027.80 = 15,309.43/x
  3. Step 3: Cross multiply
    25,379.54x = 35,027.80 × 15,309.43
  4. Step 4: Simplify right side
    25,379.54x = 536,255,476.32
  5. Step 5: Solve for x
    x = 536,255,476.32/25,379.54
  6. Step 6: Final answer
    x = 21,129.44

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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.