Home / 30,012.56-45,008.04-10,285.82

Finding the Fourth Proportional to 30,012.56, 45,008.04 and 10,285.82

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Solution

The fourth proportional to 30,012.56, 45,008.04 and 10,285.82 is: 15,425.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,012.56 : 45,008.04 = 10,285.82 : x
  2. Step 2: Convert to fraction form
    30,012.56/45,008.04 = 10,285.82/x
  3. Step 3: Cross multiply
    30,012.56x = 45,008.04 × 10,285.82
  4. Step 4: Simplify right side
    30,012.56x = 462,944,597.99
  5. Step 5: Solve for x
    x = 462,944,597.99/30,012.56
  6. Step 6: Final answer
    x = 15,425.03

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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.