Home / 39,293.78-58,941.28-21,874.32

Finding the Fourth Proportional to 39,293.78, 58,941.28 and 21,874.32

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Solution

The fourth proportional to 39,293.78, 58,941.28 and 21,874.32 is: 32,811.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,293.78 : 58,941.28 = 21,874.32 : x
  2. Step 2: Convert to fraction form
    39,293.78/58,941.28 = 21,874.32/x
  3. Step 3: Cross multiply
    39,293.78x = 58,941.28 × 21,874.32
  4. Step 4: Simplify right side
    39,293.78x = 1,289,300,419.93
  5. Step 5: Solve for x
    x = 1,289,300,419.93/39,293.78
  6. Step 6: Final answer
    x = 32,811.82

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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.