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Finding the Fourth Proportional to 36,657, 50,586.66 and 19,890

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Solution

The fourth proportional to 36,657, 50,586.66 and 19,890 is: 27,448.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,657 : 50,586.66 = 19,890 : x
  2. Step 2: Convert to fraction form
    36,657/50,586.66 = 19,890/x
  3. Step 3: Cross multiply
    36,657x = 50,586.66 × 19,890
  4. Step 4: Simplify right side
    36,657x = 1,006,168,667.40
  5. Step 5: Solve for x
    x = 1,006,168,667.40/36,657
  6. Step 6: Final answer
    x = 27,448.20

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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.