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Finding the Fourth Proportional to 39,773, 54,886.74 and 23,015.72

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Solution

The fourth proportional to 39,773, 54,886.74 and 23,015.72 is: 31,761.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,773 : 54,886.74 = 23,015.72 : x
  2. Step 2: Convert to fraction form
    39,773/54,886.74 = 23,015.72/x
  3. Step 3: Cross multiply
    39,773x = 54,886.74 × 23,015.72
  4. Step 4: Simplify right side
    39,773x = 1,263,257,839.55
  5. Step 5: Solve for x
    x = 1,263,257,839.55/39,773
  6. Step 6: Final answer
    x = 31,761.69

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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.