Home / 19,842.09-29,723.45-11,940.23

Finding the Fourth Proportional to 19,842.09, 29,723.45 and 11,940.23

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Solution

The fourth proportional to 19,842.09, 29,723.45 and 11,940.23 is: 17,886.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,842.09 : 29,723.45 = 11,940.23 : x
  2. Step 2: Convert to fraction form
    19,842.09/29,723.45 = 11,940.23/x
  3. Step 3: Cross multiply
    19,842.09x = 29,723.45 × 11,940.23
  4. Step 4: Simplify right side
    19,842.09x = 354,904,621.08
  5. Step 5: Solve for x
    x = 354,904,621.08/19,842.09
  6. Step 6: Final answer
    x = 17,886.45

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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.