Home / 39,016.19-53,842.16-21,111.51

Finding the Fourth Proportional to 39,016.19, 53,842.16 and 21,111.51

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Solution

The fourth proportional to 39,016.19, 53,842.16 and 21,111.51 is: 29,133.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,016.19 : 53,842.16 = 21,111.51 : x
  2. Step 2: Convert to fraction form
    39,016.19/53,842.16 = 21,111.51/x
  3. Step 3: Cross multiply
    39,016.19x = 53,842.16 × 21,111.51
  4. Step 4: Simplify right side
    39,016.19x = 1,136,689,150.13
  5. Step 5: Solve for x
    x = 1,136,689,150.13/39,016.19
  6. Step 6: Final answer
    x = 29,133.79

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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.