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Finding the Fourth Proportional to 37,550.79, 51,820.19 and 20,783.79

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Solution

The fourth proportional to 37,550.79, 51,820.19 and 20,783.79 is: 28,681.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,550.79 : 51,820.19 = 20,783.79 : x
  2. Step 2: Convert to fraction form
    37,550.79/51,820.19 = 20,783.79/x
  3. Step 3: Cross multiply
    37,550.79x = 51,820.19 × 20,783.79
  4. Step 4: Simplify right side
    37,550.79x = 1,077,019,583.70
  5. Step 5: Solve for x
    x = 1,077,019,583.70/37,550.79
  6. Step 6: Final answer
    x = 28,681.68

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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.