Home / 37,778.82-52,135.70-20,783.52

Finding the Fourth Proportional to 37,778.82, 52,135.70 and 20,783.52

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Solution

The fourth proportional to 37,778.82, 52,135.70 and 20,783.52 is: 28,681.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,778.82 : 52,135.70 = 20,783.52 : x
  2. Step 2: Convert to fraction form
    37,778.82/52,135.70 = 20,783.52/x
  3. Step 3: Cross multiply
    37,778.82x = 52,135.70 × 20,783.52
  4. Step 4: Simplify right side
    37,778.82x = 1,083,563,317.87
  5. Step 5: Solve for x
    x = 1,083,563,317.87/37,778.82
  6. Step 6: Final answer
    x = 28,681.77

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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.