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Finding the Fourth Proportional to 47,580.76, 71,381.58 and 19,501

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Solution

The fourth proportional to 47,580.76, 71,381.58 and 19,501 is: 29,255.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,580.76 : 71,381.58 = 19,501 : x
  2. Step 2: Convert to fraction form
    47,580.76/71,381.58 = 19,501/x
  3. Step 3: Cross multiply
    47,580.76x = 71,381.58 × 19,501
  4. Step 4: Simplify right side
    47,580.76x = 1,392,012,191.58
  5. Step 5: Solve for x
    x = 1,392,012,191.58/47,580.76
  6. Step 6: Final answer
    x = 29,255.78

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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.