Home / 37,157.38-51,274.66-20,391.46

Finding the Fourth Proportional to 37,157.38, 51,274.66 and 20,391.46

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Solution

The fourth proportional to 37,157.38, 51,274.66 and 20,391.46 is: 28,138.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,157.38 : 51,274.66 = 20,391.46 : x
  2. Step 2: Convert to fraction form
    37,157.38/51,274.66 = 20,391.46/x
  3. Step 3: Cross multiply
    37,157.38x = 51,274.66 × 20,391.46
  4. Step 4: Simplify right side
    37,157.38x = 1,045,565,178.40
  5. Step 5: Solve for x
    x = 1,045,565,178.40/37,157.38
  6. Step 6: Final answer
    x = 28,138.83

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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.