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Finding the Fourth Proportional to 35,149, 52,708.86 and 12,963.64

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Solution

The fourth proportional to 35,149, 52,708.86 and 12,963.64 is: 19,440.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,149 : 52,708.86 = 12,963.64 : x
  2. Step 2: Convert to fraction form
    35,149/52,708.86 = 12,963.64/x
  3. Step 3: Cross multiply
    35,149x = 52,708.86 × 12,963.64
  4. Step 4: Simplify right side
    35,149x = 683,298,685.85
  5. Step 5: Solve for x
    x = 683,298,685.85/35,149
  6. Step 6: Final answer
    x = 19,440.06

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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.