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Finding the Fourth Proportional to 34,325.67, 51,404.67 and 21,159.93

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Solution

The fourth proportional to 34,325.67, 51,404.67 and 21,159.93 is: 31,688.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,325.67 : 51,404.67 = 21,159.93 : x
  2. Step 2: Convert to fraction form
    34,325.67/51,404.67 = 21,159.93/x
  3. Step 3: Cross multiply
    34,325.67x = 51,404.67 × 21,159.93
  4. Step 4: Simplify right side
    34,325.67x = 1,087,719,218.87
  5. Step 5: Solve for x
    x = 1,087,719,218.87/34,325.67
  6. Step 6: Final answer
    x = 31,688.22

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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.