Home / 35,546.40-53,319.60-20,747.70

Finding the Fourth Proportional to 35,546.40, 53,319.60 and 20,747.70

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Solution

The fourth proportional to 35,546.40, 53,319.60 and 20,747.70 is: 31,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,546.40 : 53,319.60 = 20,747.70 : x
  2. Step 2: Convert to fraction form
    35,546.40/53,319.60 = 20,747.70/x
  3. Step 3: Cross multiply
    35,546.40x = 53,319.60 × 20,747.70
  4. Step 4: Simplify right side
    35,546.40x = 1,106,259,064.92
  5. Step 5: Solve for x
    x = 1,106,259,064.92/35,546.40
  6. Step 6: Final answer
    x = 31,121.55

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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.