Home / 30,989.48-46,480.86-18,340.52

Finding the Fourth Proportional to 30,989.48, 46,480.86 and 18,340.52

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Solution

The fourth proportional to 30,989.48, 46,480.86 and 18,340.52 is: 27,508.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,989.48 : 46,480.86 = 18,340.52 : x
  2. Step 2: Convert to fraction form
    30,989.48/46,480.86 = 18,340.52/x
  3. Step 3: Cross multiply
    30,989.48x = 46,480.86 × 18,340.52
  4. Step 4: Simplify right side
    30,989.48x = 852,483,142.45
  5. Step 5: Solve for x
    x = 852,483,142.45/30,989.48
  6. Step 6: Final answer
    x = 27,508.79

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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.