Home / 39,806.21-59,699.30-11,720.63

Finding the Fourth Proportional to 39,806.21, 59,699.30 and 11,720.63

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Solution

The fourth proportional to 39,806.21, 59,699.30 and 11,720.63 is: 17,577.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,806.21 : 59,699.30 = 11,720.63 : x
  2. Step 2: Convert to fraction form
    39,806.21/59,699.30 = 11,720.63/x
  3. Step 3: Cross multiply
    39,806.21x = 59,699.30 × 11,720.63
  4. Step 4: Simplify right side
    39,806.21x = 699,713,347.96
  5. Step 5: Solve for x
    x = 699,713,347.96/39,806.21
  6. Step 6: Final answer
    x = 17,577.99

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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.