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Finding the Fourth Proportional to 37,651.68, 51,960 and 20,656.77

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Solution

The fourth proportional to 37,651.68, 51,960 and 20,656.77 is: 28,506.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,651.68 : 51,960 = 20,656.77 : x
  2. Step 2: Convert to fraction form
    37,651.68/51,960 = 20,656.77/x
  3. Step 3: Cross multiply
    37,651.68x = 51,960 × 20,656.77
  4. Step 4: Simplify right side
    37,651.68x = 1,073,325,769.20
  5. Step 5: Solve for x
    x = 1,073,325,769.20/37,651.68
  6. Step 6: Final answer
    x = 28,506.72

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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.