Home / 30,150.33-45,232.38-10,428.87

Finding the Fourth Proportional to 30,150.33, 45,232.38 and 10,428.87

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Solution

The fourth proportional to 30,150.33, 45,232.38 and 10,428.87 is: 15,645.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,150.33 : 45,232.38 = 10,428.87 : x
  2. Step 2: Convert to fraction form
    30,150.33/45,232.38 = 10,428.87/x
  3. Step 3: Cross multiply
    30,150.33x = 45,232.38 × 10,428.87
  4. Step 4: Simplify right side
    30,150.33x = 471,722,610.81
  5. Step 5: Solve for x
    x = 471,722,610.81/30,150.33
  6. Step 6: Final answer
    x = 15,645.69

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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.