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Finding the Fourth Proportional to 34,326, 47,363.61 and 19,218.90

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Solution

The fourth proportional to 34,326, 47,363.61 and 19,218.90 is: 26,518.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,326 : 47,363.61 = 19,218.90 : x
  2. Step 2: Convert to fraction form
    34,326/47,363.61 = 19,218.90/x
  3. Step 3: Cross multiply
    34,326x = 47,363.61 × 19,218.90
  4. Step 4: Simplify right side
    34,326x = 910,276,484.23
  5. Step 5: Solve for x
    x = 910,276,484.23/34,326
  6. Step 6: Final answer
    x = 26,518.57

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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.