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Finding the Fourth Proportional to 29,560.80, 44,392.40 and 20,856.80

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Solution

The fourth proportional to 29,560.80, 44,392.40 and 20,856.80 is: 31,321.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,560.80 : 44,392.40 = 20,856.80 : x
  2. Step 2: Convert to fraction form
    29,560.80/44,392.40 = 20,856.80/x
  3. Step 3: Cross multiply
    29,560.80x = 44,392.40 × 20,856.80
  4. Step 4: Simplify right side
    29,560.80x = 925,883,408.32
  5. Step 5: Solve for x
    x = 925,883,408.32/29,560.80
  6. Step 6: Final answer
    x = 31,321.32

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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.