Home / 31,307.23-43,208.41-19,374.42

Finding the Fourth Proportional to 31,307.23, 43,208.41 and 19,374.42

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Solution

The fourth proportional to 31,307.23, 43,208.41 and 19,374.42 is: 26,739.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,307.23 : 43,208.41 = 19,374.42 : x
  2. Step 2: Convert to fraction form
    31,307.23/43,208.41 = 19,374.42/x
  3. Step 3: Cross multiply
    31,307.23x = 43,208.41 × 19,374.42
  4. Step 4: Simplify right side
    31,307.23x = 837,137,882.87
  5. Step 5: Solve for x
    x = 837,137,882.87/31,307.23
  6. Step 6: Final answer
    x = 26,739.44

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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.