Home / 20,231.88-30,348.73-14,658.67

Finding the Fourth Proportional to 20,231.88, 30,348.73 and 14,658.67

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Solution

The fourth proportional to 20,231.88, 30,348.73 and 14,658.67 is: 21,988.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.88 : 30,348.73 = 14,658.67 : x
  2. Step 2: Convert to fraction form
    20,231.88/30,348.73 = 14,658.67/x
  3. Step 3: Cross multiply
    20,231.88x = 30,348.73 × 14,658.67
  4. Step 4: Simplify right side
    20,231.88x = 444,871,991.79
  5. Step 5: Solve for x
    x = 444,871,991.79/20,231.88
  6. Step 6: Final answer
    x = 21,988.67

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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.