Home / 39,292.78-58,939.78-21,873.32

Finding the Fourth Proportional to 39,292.78, 58,939.78 and 21,873.32

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Solution

The fourth proportional to 39,292.78, 58,939.78 and 21,873.32 is: 32,810.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,292.78 : 58,939.78 = 21,873.32 : x
  2. Step 2: Convert to fraction form
    39,292.78/58,939.78 = 21,873.32/x
  3. Step 3: Cross multiply
    39,292.78x = 58,939.78 × 21,873.32
  4. Step 4: Simplify right side
    39,292.78x = 1,289,208,761.34
  5. Step 5: Solve for x
    x = 1,289,208,761.34/39,292.78
  6. Step 6: Final answer
    x = 32,810.32

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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.