Home / 23,118.70-31,903.77-12,508.33

Finding the Fourth Proportional to 23,118.70, 31,903.77 and 12,508.33

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Solution

The fourth proportional to 23,118.70, 31,903.77 and 12,508.33 is: 17,261.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,118.70 : 31,903.77 = 12,508.33 : x
  2. Step 2: Convert to fraction form
    23,118.70/31,903.77 = 12,508.33/x
  3. Step 3: Cross multiply
    23,118.70x = 31,903.77 × 12,508.33
  4. Step 4: Simplify right side
    23,118.70x = 399,062,883.40
  5. Step 5: Solve for x
    x = 399,062,883.40/23,118.70
  6. Step 6: Final answer
    x = 17,261.48

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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.