Home / 21,628.70-32,447.37-9,148.67

Finding the Fourth Proportional to 21,628.70, 32,447.37 and 9,148.67

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Solution

The fourth proportional to 21,628.70, 32,447.37 and 9,148.67 is: 13,724.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,628.70 : 32,447.37 = 9,148.67 : x
  2. Step 2: Convert to fraction form
    21,628.70/32,447.37 = 9,148.67/x
  3. Step 3: Cross multiply
    21,628.70x = 32,447.37 × 9,148.67
  4. Step 4: Simplify right side
    21,628.70x = 296,850,118.26
  5. Step 5: Solve for x
    x = 296,850,118.26/21,628.70
  6. Step 6: Final answer
    x = 13,724.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.