Home / 25,009.32-34,512.36-13,678.77

Finding the Fourth Proportional to 25,009.32, 34,512.36 and 13,678.77

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Solution

The fourth proportional to 25,009.32, 34,512.36 and 13,678.77 is: 18,876.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,009.32 : 34,512.36 = 13,678.77 : x
  2. Step 2: Convert to fraction form
    25,009.32/34,512.36 = 13,678.77/x
  3. Step 3: Cross multiply
    25,009.32x = 34,512.36 × 13,678.77
  4. Step 4: Simplify right side
    25,009.32x = 472,086,634.60
  5. Step 5: Solve for x
    x = 472,086,634.60/25,009.32
  6. Step 6: Final answer
    x = 18,876.43

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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.