Home / 17,811.40-26,738.70-17,681.80

Finding the Fourth Proportional to 17,811.40, 26,738.70 and 17,681.80

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Solution

The fourth proportional to 17,811.40, 26,738.70 and 17,681.80 is: 26,544.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,811.40 : 26,738.70 = 17,681.80 : x
  2. Step 2: Convert to fraction form
    17,811.40/26,738.70 = 17,681.80/x
  3. Step 3: Cross multiply
    17,811.40x = 26,738.70 × 17,681.80
  4. Step 4: Simplify right side
    17,811.40x = 472,788,345.66
  5. Step 5: Solve for x
    x = 472,788,345.66/17,811.40
  6. Step 6: Final answer
    x = 26,544.14

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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.