Home / 21,922.98-30,246.75-12,973.56

Finding the Fourth Proportional to 21,922.98, 30,246.75 and 12,973.56

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Solution

The fourth proportional to 21,922.98, 30,246.75 and 12,973.56 is: 17,899.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,922.98 : 30,246.75 = 12,973.56 : x
  2. Step 2: Convert to fraction form
    21,922.98/30,246.75 = 12,973.56/x
  3. Step 3: Cross multiply
    21,922.98x = 30,246.75 × 12,973.56
  4. Step 4: Simplify right side
    21,922.98x = 392,408,025.93
  5. Step 5: Solve for x
    x = 392,408,025.93/21,922.98
  6. Step 6: Final answer
    x = 17,899.39

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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.