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Finding the Fourth Proportional to 37,135.80, 55,710.90 and 18,667.80

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Solution

The fourth proportional to 37,135.80, 55,710.90 and 18,667.80 is: 28,005.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,135.80 : 55,710.90 = 18,667.80 : x
  2. Step 2: Convert to fraction form
    37,135.80/55,710.90 = 18,667.80/x
  3. Step 3: Cross multiply
    37,135.80x = 55,710.90 × 18,667.80
  4. Step 4: Simplify right side
    37,135.80x = 1,039,999,939.02
  5. Step 5: Solve for x
    x = 1,039,999,939.02/37,135.80
  6. Step 6: Final answer
    x = 28,005.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.