Home / 30,078.83-45,124.52-9,018.02

Finding the Fourth Proportional to 30,078.83, 45,124.52 and 9,018.02

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Solution

The fourth proportional to 30,078.83, 45,124.52 and 9,018.02 is: 13,528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,078.83 : 45,124.52 = 9,018.02 : x
  2. Step 2: Convert to fraction form
    30,078.83/45,124.52 = 9,018.02/x
  3. Step 3: Cross multiply
    30,078.83x = 45,124.52 × 9,018.02
  4. Step 4: Simplify right side
    30,078.83x = 406,933,553.14
  5. Step 5: Solve for x
    x = 406,933,553.14/30,078.83
  6. Step 6: Final answer
    x = 13,528.90

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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.