Home / 42,874.27-64,313.84-13,296.31

Finding the Fourth Proportional to 42,874.27, 64,313.84 and 13,296.31

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Solution

The fourth proportional to 42,874.27, 64,313.84 and 13,296.31 is: 19,945.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,874.27 : 64,313.84 = 13,296.31 : x
  2. Step 2: Convert to fraction form
    42,874.27/64,313.84 = 13,296.31/x
  3. Step 3: Cross multiply
    42,874.27x = 64,313.84 × 13,296.31
  4. Step 4: Simplify right side
    42,874.27x = 855,136,687.45
  5. Step 5: Solve for x
    x = 855,136,687.45/42,874.27
  6. Step 6: Final answer
    x = 19,945.22

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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.