Home / 51,380.97-70,900.31-28,717.58

Finding the Fourth Proportional to 51,380.97, 70,900.31 and 28,717.58

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Solution

The fourth proportional to 51,380.97, 70,900.31 and 28,717.58 is: 39,627.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,380.97 : 70,900.31 = 28,717.58 : x
  2. Step 2: Convert to fraction form
    51,380.97/70,900.31 = 28,717.58/x
  3. Step 3: Cross multiply
    51,380.97x = 70,900.31 × 28,717.58
  4. Step 4: Simplify right side
    51,380.97x = 2,036,084,969.95
  5. Step 5: Solve for x
    x = 2,036,084,969.95/51,380.97
  6. Step 6: Final answer
    x = 39,627.22

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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.