Home / 19,400.18-26,745.80-15,589.94

Finding the Fourth Proportional to 19,400.18, 26,745.80 and 15,589.94

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Solution

The fourth proportional to 19,400.18, 26,745.80 and 15,589.94 is: 21,492.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,400.18 : 26,745.80 = 15,589.94 : x
  2. Step 2: Convert to fraction form
    19,400.18/26,745.80 = 15,589.94/x
  3. Step 3: Cross multiply
    19,400.18x = 26,745.80 × 15,589.94
  4. Step 4: Simplify right side
    19,400.18x = 416,965,417.25
  5. Step 5: Solve for x
    x = 416,965,417.25/19,400.18
  6. Step 6: Final answer
    x = 21,492.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.