Home / 30,039.99-45,066.45-8,981.70

Finding the Fourth Proportional to 30,039.99, 45,066.45 and 8,981.70

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Solution

The fourth proportional to 30,039.99, 45,066.45 and 8,981.70 is: 13,474.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,039.99 : 45,066.45 = 8,981.70 : x
  2. Step 2: Convert to fraction form
    30,039.99/45,066.45 = 8,981.70/x
  3. Step 3: Cross multiply
    30,039.99x = 45,066.45 × 8,981.70
  4. Step 4: Simplify right side
    30,039.99x = 404,773,333.97
  5. Step 5: Solve for x
    x = 404,773,333.97/30,039.99
  6. Step 6: Final answer
    x = 13,474.48

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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.