Home / 19,420.65-26,804.91-13,749.44

Finding the Fourth Proportional to 19,420.65, 26,804.91 and 13,749.44

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Solution

The fourth proportional to 19,420.65, 26,804.91 and 13,749.44 is: 18,977.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,420.65 : 26,804.91 = 13,749.44 : x
  2. Step 2: Convert to fraction form
    19,420.65/26,804.91 = 13,749.44/x
  3. Step 3: Cross multiply
    19,420.65x = 26,804.91 × 13,749.44
  4. Step 4: Simplify right side
    19,420.65x = 368,552,367.73
  5. Step 5: Solve for x
    x = 368,552,367.73/19,420.65
  6. Step 6: Final answer
    x = 18,977.34

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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.