Home / 28,605.15-42,935.31-13,824.45

Finding the Fourth Proportional to 28,605.15, 42,935.31 and 13,824.45

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Solution

The fourth proportional to 28,605.15, 42,935.31 and 13,824.45 is: 20,750.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,605.15 : 42,935.31 = 13,824.45 : x
  2. Step 2: Convert to fraction form
    28,605.15/42,935.31 = 13,824.45/x
  3. Step 3: Cross multiply
    28,605.15x = 42,935.31 × 13,824.45
  4. Step 4: Simplify right side
    28,605.15x = 593,557,046.33
  5. Step 5: Solve for x
    x = 593,557,046.33/28,605.15
  6. Step 6: Final answer
    x = 20,750.01

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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.