Home / 26,436.20-36,480.86-15,819.56

Finding the Fourth Proportional to 26,436.20, 36,480.86 and 15,819.56

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Solution

The fourth proportional to 26,436.20, 36,480.86 and 15,819.56 is: 21,830.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,436.20 : 36,480.86 = 15,819.56 : x
  2. Step 2: Convert to fraction form
    26,436.20/36,480.86 = 15,819.56/x
  3. Step 3: Cross multiply
    26,436.20x = 36,480.86 × 15,819.56
  4. Step 4: Simplify right side
    26,436.20x = 577,111,153.62
  5. Step 5: Solve for x
    x = 577,111,153.62/26,436.20
  6. Step 6: Final answer
    x = 21,830.34

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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.