Home / 30,078.72-45,144.48-14,303.04

Finding the Fourth Proportional to 30,078.72, 45,144.48 and 14,303.04

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Solution

The fourth proportional to 30,078.72, 45,144.48 and 14,303.04 is: 21,467.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,078.72 : 45,144.48 = 14,303.04 : x
  2. Step 2: Convert to fraction form
    30,078.72/45,144.48 = 14,303.04/x
  3. Step 3: Cross multiply
    30,078.72x = 45,144.48 × 14,303.04
  4. Step 4: Simplify right side
    30,078.72x = 645,703,303.22
  5. Step 5: Solve for x
    x = 645,703,303.22/30,078.72
  6. Step 6: Final answer
    x = 21,467.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.