Home / 30,651.92-45,791.55-19,469.06

Finding the Fourth Proportional to 30,651.92, 45,791.55 and 19,469.06

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Solution

The fourth proportional to 30,651.92, 45,791.55 and 19,469.06 is: 29,085.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,651.92 : 45,791.55 = 19,469.06 : x
  2. Step 2: Convert to fraction form
    30,651.92/45,791.55 = 19,469.06/x
  3. Step 3: Cross multiply
    30,651.92x = 45,791.55 × 19,469.06
  4. Step 4: Simplify right side
    30,651.92x = 891,518,337.10
  5. Step 5: Solve for x
    x = 891,518,337.10/30,651.92
  6. Step 6: Final answer
    x = 29,085.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.