Home / 29,980.49-45,021.78-28,726.61

Finding the Fourth Proportional to 29,980.49, 45,021.78 and 28,726.61

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Solution

The fourth proportional to 29,980.49, 45,021.78 and 28,726.61 is: 43,138.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,980.49 : 45,021.78 = 28,726.61 : x
  2. Step 2: Convert to fraction form
    29,980.49/45,021.78 = 28,726.61/x
  3. Step 3: Cross multiply
    29,980.49x = 45,021.78 × 28,726.61
  4. Step 4: Simplify right side
    29,980.49x = 1,293,322,890.46
  5. Step 5: Solve for x
    x = 1,293,322,890.46/29,980.49
  6. Step 6: Final answer
    x = 43,138.82

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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.