Home / 30,082.62-45,074.61-21,301.77

Finding the Fourth Proportional to 30,082.62, 45,074.61 and 21,301.77

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Solution

The fourth proportional to 30,082.62, 45,074.61 and 21,301.77 is: 31,917.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,082.62 : 45,074.61 = 21,301.77 : x
  2. Step 2: Convert to fraction form
    30,082.62/45,074.61 = 21,301.77/x
  3. Step 3: Cross multiply
    30,082.62x = 45,074.61 × 21,301.77
  4. Step 4: Simplify right side
    30,082.62x = 960,168,975.06
  5. Step 5: Solve for x
    x = 960,168,975.06/30,082.62
  6. Step 6: Final answer
    x = 31,917.73

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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.