Home / 23,118.99-31,903.96-12,508.39

Finding the Fourth Proportional to 23,118.99, 31,903.96 and 12,508.39

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Solution

The fourth proportional to 23,118.99, 31,903.96 and 12,508.39 is: 17,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,118.99 : 31,903.96 = 12,508.39 : x
  2. Step 2: Convert to fraction form
    23,118.99/31,903.96 = 12,508.39/x
  3. Step 3: Cross multiply
    23,118.99x = 31,903.96 × 12,508.39
  4. Step 4: Simplify right side
    23,118.99x = 399,067,174.22
  5. Step 5: Solve for x
    x = 399,067,174.22/23,118.99
  6. Step 6: Final answer
    x = 17,261.44

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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.