Home / 26,619.03-39,871.31-12,557.99

Finding the Fourth Proportional to 26,619.03, 39,871.31 and 12,557.99

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Solution

The fourth proportional to 26,619.03, 39,871.31 and 12,557.99 is: 18,809.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,619.03 : 39,871.31 = 12,557.99 : x
  2. Step 2: Convert to fraction form
    26,619.03/39,871.31 = 12,557.99/x
  3. Step 3: Cross multiply
    26,619.03x = 39,871.31 × 12,557.99
  4. Step 4: Simplify right side
    26,619.03x = 500,703,250.12
  5. Step 5: Solve for x
    x = 500,703,250.12/26,619.03
  6. Step 6: Final answer
    x = 18,809.97

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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.