Home / 25,867.88-38,782.16-13,379.96

Finding the Fourth Proportional to 25,867.88, 38,782.16 and 13,379.96

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Solution

The fourth proportional to 25,867.88, 38,782.16 and 13,379.96 is: 20,059.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,867.88 : 38,782.16 = 13,379.96 : x
  2. Step 2: Convert to fraction form
    25,867.88/38,782.16 = 13,379.96/x
  3. Step 3: Cross multiply
    25,867.88x = 38,782.16 × 13,379.96
  4. Step 4: Simplify right side
    25,867.88x = 518,903,749.51
  5. Step 5: Solve for x
    x = 518,903,749.51/25,867.88
  6. Step 6: Final answer
    x = 20,059.77

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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.