Home / 30,408.04-45,618.54-9,631.72

Finding the Fourth Proportional to 30,408.04, 45,618.54 and 9,631.72

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Solution

The fourth proportional to 30,408.04, 45,618.54 and 9,631.72 is: 14,449.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,408.04 : 45,618.54 = 9,631.72 : x
  2. Step 2: Convert to fraction form
    30,408.04/45,618.54 = 9,631.72/x
  3. Step 3: Cross multiply
    30,408.04x = 45,618.54 × 9,631.72
  4. Step 4: Simplify right side
    30,408.04x = 439,385,004.09
  5. Step 5: Solve for x
    x = 439,385,004.09/30,408.04
  6. Step 6: Final answer
    x = 14,449.63

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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.