Home / 27,815.40-41,726.70-13,782.60

Finding the Fourth Proportional to 27,815.40, 41,726.70 and 13,782.60

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Solution

The fourth proportional to 27,815.40, 41,726.70 and 13,782.60 is: 20,675.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,815.40 : 41,726.70 = 13,782.60 : x
  2. Step 2: Convert to fraction form
    27,815.40/41,726.70 = 13,782.60/x
  3. Step 3: Cross multiply
    27,815.40x = 41,726.70 × 13,782.60
  4. Step 4: Simplify right side
    27,815.40x = 575,102,415.42
  5. Step 5: Solve for x
    x = 575,102,415.42/27,815.40
  6. Step 6: Final answer
    x = 20,675.68

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1.5x scale

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.