Home / 22,319.86-30,791.68-13,819.72

Finding the Fourth Proportional to 22,319.86, 30,791.68 and 13,819.72

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Solution

The fourth proportional to 22,319.86, 30,791.68 and 13,819.72 is: 19,065.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,319.86 : 30,791.68 = 13,819.72 : x
  2. Step 2: Convert to fraction form
    22,319.86/30,791.68 = 13,819.72/x
  3. Step 3: Cross multiply
    22,319.86x = 30,791.68 × 13,819.72
  4. Step 4: Simplify right side
    22,319.86x = 425,532,395.93
  5. Step 5: Solve for x
    x = 425,532,395.93/22,319.86
  6. Step 6: Final answer
    x = 19,065.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.