Home / 21,836.56-30,133.56-13,352.96

Finding the Fourth Proportional to 21,836.56, 30,133.56 and 13,352.96

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Solution

The fourth proportional to 21,836.56, 30,133.56 and 13,352.96 is: 18,426.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,836.56 : 30,133.56 = 13,352.96 : x
  2. Step 2: Convert to fraction form
    21,836.56/30,133.56 = 13,352.96/x
  3. Step 3: Cross multiply
    21,836.56x = 30,133.56 × 13,352.96
  4. Step 4: Simplify right side
    21,836.56x = 402,372,221.34
  5. Step 5: Solve for x
    x = 402,372,221.34/21,836.56
  6. Step 6: Final answer
    x = 18,426.54

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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.