Home / 33,021.60-49,532.40-21,211.80

Finding the Fourth Proportional to 33,021.60, 49,532.40 and 21,211.80

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Solution

The fourth proportional to 33,021.60, 49,532.40 and 21,211.80 is: 31,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,021.60 : 49,532.40 = 21,211.80 : x
  2. Step 2: Convert to fraction form
    33,021.60/49,532.40 = 21,211.80/x
  3. Step 3: Cross multiply
    33,021.60x = 49,532.40 × 21,211.80
  4. Step 4: Simplify right side
    33,021.60x = 1,050,671,362.32
  5. Step 5: Solve for x
    x = 1,050,671,362.32/33,021.60
  6. Step 6: Final answer
    x = 31,817.70

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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.