Home / 20,293.63-30,440.43-13,317.77

Finding the Fourth Proportional to 20,293.63, 30,440.43 and 13,317.77

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Solution

The fourth proportional to 20,293.63, 30,440.43 and 13,317.77 is: 19,976.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,293.63 : 30,440.43 = 13,317.77 : x
  2. Step 2: Convert to fraction form
    20,293.63/30,440.43 = 13,317.77/x
  3. Step 3: Cross multiply
    20,293.63x = 30,440.43 × 13,317.77
  4. Step 4: Simplify right side
    20,293.63x = 405,398,721.54
  5. Step 5: Solve for x
    x = 405,398,721.54/20,293.63
  6. Step 6: Final answer
    x = 19,976.65

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1.5x scale

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.