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Finding the Fourth Proportional to 35,931.50, 49,585.48 and 21,027.50

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Solution

The fourth proportional to 35,931.50, 49,585.48 and 21,027.50 is: 29,017.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,931.50 : 49,585.48 = 21,027.50 : x
  2. Step 2: Convert to fraction form
    35,931.50/49,585.48 = 21,027.50/x
  3. Step 3: Cross multiply
    35,931.50x = 49,585.48 × 21,027.50
  4. Step 4: Simplify right side
    35,931.50x = 1,042,658,680.70
  5. Step 5: Solve for x
    x = 1,042,658,680.70/35,931.50
  6. Step 6: Final answer
    x = 29,017.96

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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.