Home / 28,718.69-43,092.74-11,864.21

Finding the Fourth Proportional to 28,718.69, 43,092.74 and 11,864.21

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Solution

The fourth proportional to 28,718.69, 43,092.74 and 11,864.21 is: 17,802.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.69 : 43,092.74 = 11,864.21 : x
  2. Step 2: Convert to fraction form
    28,718.69/43,092.74 = 11,864.21/x
  3. Step 3: Cross multiply
    28,718.69x = 43,092.74 × 11,864.21
  4. Step 4: Simplify right side
    28,718.69x = 511,261,131.03
  5. Step 5: Solve for x
    x = 511,261,131.03/28,718.69
  6. Step 6: Final answer
    x = 17,802.39

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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.