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Finding the Fourth Proportional to 37,289.80, 51,459.39 and 20,522.80

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Solution

The fourth proportional to 37,289.80, 51,459.39 and 20,522.80 is: 28,321.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,289.80 : 51,459.39 = 20,522.80 : x
  2. Step 2: Convert to fraction form
    37,289.80/51,459.39 = 20,522.80/x
  3. Step 3: Cross multiply
    37,289.80x = 51,459.39 × 20,522.80
  4. Step 4: Simplify right side
    37,289.80x = 1,056,090,769.09
  5. Step 5: Solve for x
    x = 1,056,090,769.09/37,289.80
  6. Step 6: Final answer
    x = 28,321.17

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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.