Home / 27,918.92-38,527.66-15,343.40

Finding the Fourth Proportional to 27,918.92, 38,527.66 and 15,343.40

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Solution

The fourth proportional to 27,918.92, 38,527.66 and 15,343.40 is: 21,173.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.92 : 38,527.66 = 15,343.40 : x
  2. Step 2: Convert to fraction form
    27,918.92/38,527.66 = 15,343.40/x
  3. Step 3: Cross multiply
    27,918.92x = 38,527.66 × 15,343.40
  4. Step 4: Simplify right side
    27,918.92x = 591,145,298.44
  5. Step 5: Solve for x
    x = 591,145,298.44/27,918.92
  6. Step 6: Final answer
    x = 21,173.64

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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.