Home / 20,973.78-31,466.12-7,826.25

Finding the Fourth Proportional to 20,973.78, 31,466.12 and 7,826.25

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Solution

The fourth proportional to 20,973.78, 31,466.12 and 7,826.25 is: 11,741.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.78 : 31,466.12 = 7,826.25 : x
  2. Step 2: Convert to fraction form
    20,973.78/31,466.12 = 7,826.25/x
  3. Step 3: Cross multiply
    20,973.78x = 31,466.12 × 7,826.25
  4. Step 4: Simplify right side
    20,973.78x = 246,261,721.65
  5. Step 5: Solve for x
    x = 246,261,721.65/20,973.78
  6. Step 6: Final answer
    x = 11,741.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.