Home / 27,786.51-38,345.40-15,211.26

Finding the Fourth Proportional to 27,786.51, 38,345.40 and 15,211.26

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Solution

The fourth proportional to 27,786.51, 38,345.40 and 15,211.26 is: 20,991.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,786.51 : 38,345.40 = 15,211.26 : x
  2. Step 2: Convert to fraction form
    27,786.51/38,345.40 = 15,211.26/x
  3. Step 3: Cross multiply
    27,786.51x = 38,345.40 × 15,211.26
  4. Step 4: Simplify right side
    27,786.51x = 583,281,849.20
  5. Step 5: Solve for x
    x = 583,281,849.20/27,786.51
  6. Step 6: Final answer
    x = 20,991.55

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