Home / 21,391.95-29,520.48-11,832.67

Finding the Fourth Proportional to 21,391.95, 29,520.48 and 11,832.67

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Solution

The fourth proportional to 21,391.95, 29,520.48 and 11,832.67 is: 16,328.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,391.95 : 29,520.48 = 11,832.67 : x
  2. Step 2: Convert to fraction form
    21,391.95/29,520.48 = 11,832.67/x
  3. Step 3: Cross multiply
    21,391.95x = 29,520.48 × 11,832.67
  4. Step 4: Simplify right side
    21,391.95x = 349,306,098.08
  5. Step 5: Solve for x
    x = 349,306,098.08/21,391.95
  6. Step 6: Final answer
    x = 16,328.86

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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.