Home / 38,745.09-53,473.86-21,756.36

Finding the Fourth Proportional to 38,745.09, 53,473.86 and 21,756.36

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Solution

The fourth proportional to 38,745.09, 53,473.86 and 21,756.36 is: 30,026.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,745.09 : 53,473.86 = 21,756.36 : x
  2. Step 2: Convert to fraction form
    38,745.09/53,473.86 = 21,756.36/x
  3. Step 3: Cross multiply
    38,745.09x = 53,473.86 × 21,756.36
  4. Step 4: Simplify right side
    38,745.09x = 1,163,396,548.75
  5. Step 5: Solve for x
    x = 1,163,396,548.75/38,745.09
  6. Step 6: Final answer
    x = 30,026.94

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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.