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Finding the Fourth Proportional to 34,381.50, 47,446.50 and 19,477.50

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Solution

The fourth proportional to 34,381.50, 47,446.50 and 19,477.50 is: 26,878.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,381.50 : 47,446.50 = 19,477.50 : x
  2. Step 2: Convert to fraction form
    34,381.50/47,446.50 = 19,477.50/x
  3. Step 3: Cross multiply
    34,381.50x = 47,446.50 × 19,477.50
  4. Step 4: Simplify right side
    34,381.50x = 924,139,203.75
  5. Step 5: Solve for x
    x = 924,139,203.75/34,381.50
  6. Step 6: Final answer
    x = 26,878.97

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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.