Home / 30,299.14-45,450.78-10,300.49

Finding the Fourth Proportional to 30,299.14, 45,450.78 and 10,300.49

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Solution

The fourth proportional to 30,299.14, 45,450.78 and 10,300.49 is: 15,451.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,299.14 : 45,450.78 = 10,300.49 : x
  2. Step 2: Convert to fraction form
    30,299.14/45,450.78 = 10,300.49/x
  3. Step 3: Cross multiply
    30,299.14x = 45,450.78 × 10,300.49
  4. Step 4: Simplify right side
    30,299.14x = 468,165,026.13
  5. Step 5: Solve for x
    x = 468,165,026.13/30,299.14
  6. Step 6: Final answer
    x = 15,451.43

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1.5x scale

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.