Home / 30,100.14-45,146.62-7,915.25

Finding the Fourth Proportional to 30,100.14, 45,146.62 and 7,915.25

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Solution

The fourth proportional to 30,100.14, 45,146.62 and 7,915.25 is: 11,871.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,100.14 : 45,146.62 = 7,915.25 : x
  2. Step 2: Convert to fraction form
    30,100.14/45,146.62 = 7,915.25/x
  3. Step 3: Cross multiply
    30,100.14x = 45,146.62 × 7,915.25
  4. Step 4: Simplify right side
    30,100.14x = 357,346,817.05
  5. Step 5: Solve for x
    x = 357,346,817.05/30,100.14
  6. Step 6: Final answer
    x = 11,871.93

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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.