Home / 20,973.53-31,465.74-7,826

Finding the Fourth Proportional to 20,973.53, 31,465.74 and 7,826

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Solution

The fourth proportional to 20,973.53, 31,465.74 and 7,826 is: 11,741.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.53 : 31,465.74 = 7,826 : x
  2. Step 2: Convert to fraction form
    20,973.53/31,465.74 = 7,826/x
  3. Step 3: Cross multiply
    20,973.53x = 31,465.74 × 7,826
  4. Step 4: Simplify right side
    20,973.53x = 246,250,881.24
  5. Step 5: Solve for x
    x = 246,250,881.24/20,973.53
  6. Step 6: Final answer
    x = 11,741.03

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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.