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Finding the Fourth Proportional to 29,835.60, 44,850.60 and 21,130.80

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Solution

The fourth proportional to 29,835.60, 44,850.60 and 21,130.80 is: 31,765.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,835.60 : 44,850.60 = 21,130.80 : x
  2. Step 2: Convert to fraction form
    29,835.60/44,850.60 = 21,130.80/x
  3. Step 3: Cross multiply
    29,835.60x = 44,850.60 × 21,130.80
  4. Step 4: Simplify right side
    29,835.60x = 947,729,058.48
  5. Step 5: Solve for x
    x = 947,729,058.48/29,835.60
  6. Step 6: Final answer
    x = 31,765.04

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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.