Home / 27,784.32-41,680.80-9,312

Finding the Fourth Proportional to 27,784.32, 41,680.80 and 9,312

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Solution

The fourth proportional to 27,784.32, 41,680.80 and 9,312 is: 13,969.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,784.32 : 41,680.80 = 9,312 : x
  2. Step 2: Convert to fraction form
    27,784.32/41,680.80 = 9,312/x
  3. Step 3: Cross multiply
    27,784.32x = 41,680.80 × 9,312
  4. Step 4: Simplify right side
    27,784.32x = 388,131,609.60
  5. Step 5: Solve for x
    x = 388,131,609.60/27,784.32
  6. Step 6: Final answer
    x = 13,969.45

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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.