Home / 19,420.25-26,804.36-13,749.10

Finding the Fourth Proportional to 19,420.25, 26,804.36 and 13,749.10

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Solution

The fourth proportional to 19,420.25, 26,804.36 and 13,749.10 is: 18,976.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,420.25 : 26,804.36 = 13,749.10 : x
  2. Step 2: Convert to fraction form
    19,420.25/26,804.36 = 13,749.10/x
  3. Step 3: Cross multiply
    19,420.25x = 26,804.36 × 13,749.10
  4. Step 4: Simplify right side
    19,420.25x = 368,535,793.44
  5. Step 5: Solve for x
    x = 368,535,793.44/19,420.25
  6. Step 6: Final answer
    x = 18,976.89

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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.