Home / 30,489.92-45,550.12-19,307.06

Finding the Fourth Proportional to 30,489.92, 45,550.12 and 19,307.06

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Solution

The fourth proportional to 30,489.92, 45,550.12 and 19,307.06 is: 28,843.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,489.92 : 45,550.12 = 19,307.06 : x
  2. Step 2: Convert to fraction form
    30,489.92/45,550.12 = 19,307.06/x
  3. Step 3: Cross multiply
    30,489.92x = 45,550.12 × 19,307.06
  4. Step 4: Simplify right side
    30,489.92x = 879,438,899.85
  5. Step 5: Solve for x
    x = 879,438,899.85/30,489.92
  6. Step 6: Final answer
    x = 28,843.59

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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.