Home / 30,039.46-45,067.43-21,590.12

Finding the Fourth Proportional to 30,039.46, 45,067.43 and 21,590.12

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Solution

The fourth proportional to 30,039.46, 45,067.43 and 21,590.12 is: 32,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,039.46 : 45,067.43 = 21,590.12 : x
  2. Step 2: Convert to fraction form
    30,039.46/45,067.43 = 21,590.12/x
  3. Step 3: Cross multiply
    30,039.46x = 45,067.43 × 21,590.12
  4. Step 4: Simplify right side
    30,039.46x = 973,011,221.79
  5. Step 5: Solve for x
    x = 973,011,221.79/30,039.46
  6. Step 6: Final answer
    x = 32,391.10

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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.