Home / 28,557.36-39,409.68-15,982.08

Finding the Fourth Proportional to 28,557.36, 39,409.68 and 15,982.08

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Solution

The fourth proportional to 28,557.36, 39,409.68 and 15,982.08 is: 22,055.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,557.36 : 39,409.68 = 15,982.08 : x
  2. Step 2: Convert to fraction form
    28,557.36/39,409.68 = 15,982.08/x
  3. Step 3: Cross multiply
    28,557.36x = 39,409.68 × 15,982.08
  4. Step 4: Simplify right side
    28,557.36x = 629,848,658.53
  5. Step 5: Solve for x
    x = 629,848,658.53/28,557.36
  6. Step 6: Final answer
    x = 22,055.56

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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.