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Finding the Fourth Proportional to 37,550.81, 51,820.93 and 20,783.81

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Solution

The fourth proportional to 37,550.81, 51,820.93 and 20,783.81 is: 28,682.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,550.81 : 51,820.93 = 20,783.81 : x
  2. Step 2: Convert to fraction form
    37,550.81/51,820.93 = 20,783.81/x
  3. Step 3: Cross multiply
    37,550.81x = 51,820.93 × 20,783.81
  4. Step 4: Simplify right side
    37,550.81x = 1,077,036,518.68
  5. Step 5: Solve for x
    x = 1,077,036,518.68/37,550.81
  6. Step 6: Final answer
    x = 28,682.11

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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.