Home / 30,103.36-45,155.14-7,914.87

Finding the Fourth Proportional to 30,103.36, 45,155.14 and 7,914.87

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Solution

The fourth proportional to 30,103.36, 45,155.14 and 7,914.87 is: 11,872.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,103.36 : 45,155.14 = 7,914.87 : x
  2. Step 2: Convert to fraction form
    30,103.36/45,155.14 = 7,914.87/x
  3. Step 3: Cross multiply
    30,103.36x = 45,155.14 × 7,914.87
  4. Step 4: Simplify right side
    30,103.36x = 357,397,043.14
  5. Step 5: Solve for x
    x = 357,397,043.14/30,103.36
  6. Step 6: Final answer
    x = 11,872.33

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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.