Home / 21,190.33-29,243.33-12,237.67

Finding the Fourth Proportional to 21,190.33, 29,243.33 and 12,237.67

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Solution

The fourth proportional to 21,190.33, 29,243.33 and 12,237.67 is: 16,888.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,190.33 : 29,243.33 = 12,237.67 : x
  2. Step 2: Convert to fraction form
    21,190.33/29,243.33 = 12,237.67/x
  3. Step 3: Cross multiply
    21,190.33x = 29,243.33 × 12,237.67
  4. Step 4: Simplify right side
    21,190.33x = 357,870,222.24
  5. Step 5: Solve for x
    x = 357,870,222.24/21,190.33
  6. Step 6: Final answer
    x = 16,888.37

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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.