Home / 30,107.51-45,144.68-10,369.79

Finding the Fourth Proportional to 30,107.51, 45,144.68 and 10,369.79

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Solution

The fourth proportional to 30,107.51, 45,144.68 and 10,369.79 is: 15,548.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,107.51 : 45,144.68 = 10,369.79 : x
  2. Step 2: Convert to fraction form
    30,107.51/45,144.68 = 10,369.79/x
  3. Step 3: Cross multiply
    30,107.51x = 45,144.68 × 10,369.79
  4. Step 4: Simplify right side
    30,107.51x = 468,140,799.37
  5. Step 5: Solve for x
    x = 468,140,799.37/30,107.51
  6. Step 6: Final answer
    x = 15,548.97

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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.