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Finding the Fourth Proportional to 37,050.50, 51,129.70 and 20,283.50

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Solution

The fourth proportional to 37,050.50, 51,129.70 and 20,283.50 is: 27,991.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,050.50 : 51,129.70 = 20,283.50 : x
  2. Step 2: Convert to fraction form
    37,050.50/51,129.70 = 20,283.50/x
  3. Step 3: Cross multiply
    37,050.50x = 51,129.70 × 20,283.50
  4. Step 4: Simplify right side
    37,050.50x = 1,037,089,269.95
  5. Step 5: Solve for x
    x = 1,037,089,269.95/37,050.50
  6. Step 6: Final answer
    x = 27,991.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.