Home / 28,557.25-39,409.14-15,982

Finding the Fourth Proportional to 28,557.25, 39,409.14 and 15,982

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Solution

The fourth proportional to 28,557.25, 39,409.14 and 15,982 is: 22,055.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,557.25 : 39,409.14 = 15,982 : x
  2. Step 2: Convert to fraction form
    28,557.25/39,409.14 = 15,982/x
  3. Step 3: Cross multiply
    28,557.25x = 39,409.14 × 15,982
  4. Step 4: Simplify right side
    28,557.25x = 629,836,875.48
  5. Step 5: Solve for x
    x = 629,836,875.48/28,557.25
  6. Step 6: Final answer
    x = 22,055.24

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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.