Home / 21,765.24-30,030.77-13,804.56

Finding the Fourth Proportional to 21,765.24, 30,030.77 and 13,804.56

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Solution

The fourth proportional to 21,765.24, 30,030.77 and 13,804.56 is: 19,046.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,765.24 : 30,030.77 = 13,804.56 : x
  2. Step 2: Convert to fraction form
    21,765.24/30,030.77 = 13,804.56/x
  3. Step 3: Cross multiply
    21,765.24x = 30,030.77 × 13,804.56
  4. Step 4: Simplify right side
    21,765.24x = 414,561,497.29
  5. Step 5: Solve for x
    x = 414,561,497.29/21,765.24
  6. Step 6: Final answer
    x = 19,046.95

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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.