Home / 30,071.75-45,110.36-7,885.04

Finding the Fourth Proportional to 30,071.75, 45,110.36 and 7,885.04

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Solution

The fourth proportional to 30,071.75, 45,110.36 and 7,885.04 is: 11,828.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,071.75 : 45,110.36 = 7,885.04 : x
  2. Step 2: Convert to fraction form
    30,071.75/45,110.36 = 7,885.04/x
  3. Step 3: Cross multiply
    30,071.75x = 45,110.36 × 7,885.04
  4. Step 4: Simplify right side
    30,071.75x = 355,696,787.18
  5. Step 5: Solve for x
    x = 355,696,787.18/30,071.75
  6. Step 6: Final answer
    x = 11,828.27

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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.