Home / 23,118.36-31,903.20-12,507.90

Finding the Fourth Proportional to 23,118.36, 31,903.20 and 12,507.90

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Solution

The fourth proportional to 23,118.36, 31,903.20 and 12,507.90 is: 17,260.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,118.36 : 31,903.20 = 12,507.90 : x
  2. Step 2: Convert to fraction form
    23,118.36/31,903.20 = 12,507.90/x
  3. Step 3: Cross multiply
    23,118.36x = 31,903.20 × 12,507.90
  4. Step 4: Simplify right side
    23,118.36x = 399,042,035.28
  5. Step 5: Solve for x
    x = 399,042,035.28/23,118.36
  6. Step 6: Final answer
    x = 17,260.83

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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.