Home / 19,842.28-27,374.16-13,131.16

Finding the Fourth Proportional to 19,842.28, 27,374.16 and 13,131.16

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Solution

The fourth proportional to 19,842.28, 27,374.16 and 13,131.16 is: 18,115.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,842.28 : 27,374.16 = 13,131.16 : x
  2. Step 2: Convert to fraction form
    19,842.28/27,374.16 = 13,131.16/x
  3. Step 3: Cross multiply
    19,842.28x = 27,374.16 × 13,131.16
  4. Step 4: Simplify right side
    19,842.28x = 359,454,474.83
  5. Step 5: Solve for x
    x = 359,454,474.83/19,842.28
  6. Step 6: Final answer
    x = 18,115.58

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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.