Home / 21,334.55-29,436.96-12,376.86

Finding the Fourth Proportional to 21,334.55, 29,436.96 and 12,376.86

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Solution

The fourth proportional to 21,334.55, 29,436.96 and 12,376.86 is: 17,077.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,334.55 : 29,436.96 = 12,376.86 : x
  2. Step 2: Convert to fraction form
    21,334.55/29,436.96 = 12,376.86/x
  3. Step 3: Cross multiply
    21,334.55x = 29,436.96 × 12,376.86
  4. Step 4: Simplify right side
    21,334.55x = 364,337,132.75
  5. Step 5: Solve for x
    x = 364,337,132.75/21,334.55
  6. Step 6: Final answer
    x = 17,077.33

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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.