Home / 28,322.24-42,468.80-12,726.56

Finding the Fourth Proportional to 28,322.24, 42,468.80 and 12,726.56

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Solution

The fourth proportional to 28,322.24, 42,468.80 and 12,726.56 is: 19,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.24 : 42,468.80 = 12,726.56 : x
  2. Step 2: Convert to fraction form
    28,322.24/42,468.80 = 12,726.56/x
  3. Step 3: Cross multiply
    28,322.24x = 42,468.80 × 12,726.56
  4. Step 4: Simplify right side
    28,322.24x = 540,481,731.33
  5. Step 5: Solve for x
    x = 540,481,731.33/28,322.24
  6. Step 6: Final answer
    x = 19,083.30

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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.