Home / 31,629.60-47,444.40-19,994.40

Finding the Fourth Proportional to 31,629.60, 47,444.40 and 19,994.40

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Solution

The fourth proportional to 31,629.60, 47,444.40 and 19,994.40 is: 29,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,629.60 : 47,444.40 = 19,994.40 : x
  2. Step 2: Convert to fraction form
    31,629.60/47,444.40 = 19,994.40/x
  3. Step 3: Cross multiply
    31,629.60x = 47,444.40 × 19,994.40
  4. Step 4: Simplify right side
    31,629.60x = 948,622,311.36
  5. Step 5: Solve for x
    x = 948,622,311.36/31,629.60
  6. Step 6: Final answer
    x = 29,991.60

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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.