Home / 37,778.11-52,133.82-20,783.66

Finding the Fourth Proportional to 37,778.11, 52,133.82 and 20,783.66

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Solution

The fourth proportional to 37,778.11, 52,133.82 and 20,783.66 is: 28,681.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,778.11 : 52,133.82 = 20,783.66 : x
  2. Step 2: Convert to fraction form
    37,778.11/52,133.82 = 20,783.66/x
  3. Step 3: Cross multiply
    37,778.11x = 52,133.82 × 20,783.66
  4. Step 4: Simplify right side
    37,778.11x = 1,083,531,250.77
  5. Step 5: Solve for x
    x = 1,083,531,250.77/37,778.11
  6. Step 6: Final answer
    x = 28,681.46

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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.