Home / 21,955.26-30,304.35-13,005.84

Finding the Fourth Proportional to 21,955.26, 30,304.35 and 13,005.84

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Solution

The fourth proportional to 21,955.26, 30,304.35 and 13,005.84 is: 17,951.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955.26 : 30,304.35 = 13,005.84 : x
  2. Step 2: Convert to fraction form
    21,955.26/30,304.35 = 13,005.84/x
  3. Step 3: Cross multiply
    21,955.26x = 30,304.35 × 13,005.84
  4. Step 4: Simplify right side
    21,955.26x = 394,133,527.40
  5. Step 5: Solve for x
    x = 394,133,527.40/21,955.26
  6. Step 6: Final answer
    x = 17,951.67

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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.