Home / 28,716.36-43,030.58-19,321.58

Finding the Fourth Proportional to 28,716.36, 43,030.58 and 19,321.58

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Solution

The fourth proportional to 28,716.36, 43,030.58 and 19,321.58 is: 28,952.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.36 : 43,030.58 = 19,321.58 : x
  2. Step 2: Convert to fraction form
    28,716.36/43,030.58 = 19,321.58/x
  3. Step 3: Cross multiply
    28,716.36x = 43,030.58 × 19,321.58
  4. Step 4: Simplify right side
    28,716.36x = 831,418,793.92
  5. Step 5: Solve for x
    x = 831,418,793.92/28,716.36
  6. Step 6: Final answer
    x = 28,952.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.