Home / 30,122.33-45,182.81-10,399.03

Finding the Fourth Proportional to 30,122.33, 45,182.81 and 10,399.03

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Solution

The fourth proportional to 30,122.33, 45,182.81 and 10,399.03 is: 15,598.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,122.33 : 45,182.81 = 10,399.03 : x
  2. Step 2: Convert to fraction form
    30,122.33/45,182.81 = 10,399.03/x
  3. Step 3: Cross multiply
    30,122.33x = 45,182.81 × 10,399.03
  4. Step 4: Simplify right side
    30,122.33x = 469,857,563.87
  5. Step 5: Solve for x
    x = 469,857,563.87/30,122.33
  6. Step 6: Final answer
    x = 15,598.31

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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.