Home / 39,016.83-53,842.83-21,111.44

Finding the Fourth Proportional to 39,016.83, 53,842.83 and 21,111.44

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Solution

The fourth proportional to 39,016.83, 53,842.83 and 21,111.44 is: 29,133.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,016.83 : 53,842.83 = 21,111.44 : x
  2. Step 2: Convert to fraction form
    39,016.83/53,842.83 = 21,111.44/x
  3. Step 3: Cross multiply
    39,016.83x = 53,842.83 × 21,111.44
  4. Step 4: Simplify right side
    39,016.83x = 1,136,699,405.76
  5. Step 5: Solve for x
    x = 1,136,699,405.76/39,016.83
  6. Step 6: Final answer
    x = 29,133.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.