Home / 30,185.50-45,280.75-9,409

Finding the Fourth Proportional to 30,185.50, 45,280.75 and 9,409

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Solution

The fourth proportional to 30,185.50, 45,280.75 and 9,409 is: 14,114.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,185.50 : 45,280.75 = 9,409 : x
  2. Step 2: Convert to fraction form
    30,185.50/45,280.75 = 9,409/x
  3. Step 3: Cross multiply
    30,185.50x = 45,280.75 × 9,409
  4. Step 4: Simplify right side
    30,185.50x = 426,046,576.75
  5. Step 5: Solve for x
    x = 426,046,576.75/30,185.50
  6. Step 6: Final answer
    x = 14,114.28

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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.