Home / 23,118.10-31,902.78-12,507.64

Finding the Fourth Proportional to 23,118.10, 31,902.78 and 12,507.64

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Solution

The fourth proportional to 23,118.10, 31,902.78 and 12,507.64 is: 17,260.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,118.10 : 31,902.78 = 12,507.64 : x
  2. Step 2: Convert to fraction form
    23,118.10/31,902.78 = 12,507.64/x
  3. Step 3: Cross multiply
    23,118.10x = 31,902.78 × 12,507.64
  4. Step 4: Simplify right side
    23,118.10x = 399,028,487.24
  5. Step 5: Solve for x
    x = 399,028,487.24/23,118.10
  6. Step 6: Final answer
    x = 17,260.44

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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.