Home / 25,918.53-38,830.86-11,890.29

Finding the Fourth Proportional to 25,918.53, 38,830.86 and 11,890.29

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Solution

The fourth proportional to 25,918.53, 38,830.86 and 11,890.29 is: 17,813.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,918.53 : 38,830.86 = 11,890.29 : x
  2. Step 2: Convert to fraction form
    25,918.53/38,830.86 = 11,890.29/x
  3. Step 3: Cross multiply
    25,918.53x = 38,830.86 × 11,890.29
  4. Step 4: Simplify right side
    25,918.53x = 461,710,186.35
  5. Step 5: Solve for x
    x = 461,710,186.35/25,918.53
  6. Step 6: Final answer
    x = 17,813.90

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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.