Home / 21,797.12-30,079.14-12,365.48

Finding the Fourth Proportional to 21,797.12, 30,079.14 and 12,365.48

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Solution

The fourth proportional to 21,797.12, 30,079.14 and 12,365.48 is: 17,063.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,797.12 : 30,079.14 = 12,365.48 : x
  2. Step 2: Convert to fraction form
    21,797.12/30,079.14 = 12,365.48/x
  3. Step 3: Cross multiply
    21,797.12x = 30,079.14 × 12,365.48
  4. Step 4: Simplify right side
    21,797.12x = 371,943,004.09
  5. Step 5: Solve for x
    x = 371,943,004.09/21,797.12
  6. Step 6: Final answer
    x = 17,063.86

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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.