Home / 21,794.22-30,040.08-15,412.56

Finding the Fourth Proportional to 21,794.22, 30,040.08 and 15,412.56

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Solution

The fourth proportional to 21,794.22, 30,040.08 and 15,412.56 is: 21,243.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,794.22 : 30,040.08 = 15,412.56 : x
  2. Step 2: Convert to fraction form
    21,794.22/30,040.08 = 15,412.56/x
  3. Step 3: Cross multiply
    21,794.22x = 30,040.08 × 15,412.56
  4. Step 4: Simplify right side
    21,794.22x = 462,994,535.40
  5. Step 5: Solve for x
    x = 462,994,535.40/21,794.22
  6. Step 6: Final answer
    x = 21,243.91

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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.