Home / 30,815.75-46,229.61-11,839.00

Finding the Fourth Proportional to 30,815.75, 46,229.61 and 11,839.00

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Solution

The fourth proportional to 30,815.75, 46,229.61 and 11,839.00 is: 17,760.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,815.75 : 46,229.61 = 11,839.00 : x
  2. Step 2: Convert to fraction form
    30,815.75/46,229.61 = 11,839.00/x
  3. Step 3: Cross multiply
    30,815.75x = 46,229.61 × 11,839.00
  4. Step 4: Simplify right side
    30,815.75x = 547,312,368.29
  5. Step 5: Solve for x
    x = 547,312,368.29/30,815.75
  6. Step 6: Final answer
    x = 17,760.80

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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.