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Finding the Fourth Proportional to 38,482.95, 53,105.97 and 21,487.48

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Solution

The fourth proportional to 38,482.95, 53,105.97 and 21,487.48 is: 29,652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,482.95 : 53,105.97 = 21,487.48 : x
  2. Step 2: Convert to fraction form
    38,482.95/53,105.97 = 21,487.48/x
  3. Step 3: Cross multiply
    38,482.95x = 53,105.97 × 21,487.48
  4. Step 4: Simplify right side
    38,482.95x = 1,141,113,669.03
  5. Step 5: Solve for x
    x = 1,141,113,669.03/38,482.95
  6. Step 6: Final answer
    x = 29,652.45

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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.