Home / 30,185.30-45,262.74-10,458.56

Finding the Fourth Proportional to 30,185.30, 45,262.74 and 10,458.56

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Solution

The fourth proportional to 30,185.30, 45,262.74 and 10,458.56 is: 15,682.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,185.30 : 45,262.74 = 10,458.56 : x
  2. Step 2: Convert to fraction form
    30,185.30/45,262.74 = 10,458.56/x
  3. Step 3: Cross multiply
    30,185.30x = 45,262.74 × 10,458.56
  4. Step 4: Simplify right side
    30,185.30x = 473,383,082.05
  5. Step 5: Solve for x
    x = 473,383,082.05/30,185.30
  6. Step 6: Final answer
    x = 15,682.57

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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.