Home / 23,115.44-31,899.29-12,505.07

Finding the Fourth Proportional to 23,115.44, 31,899.29 and 12,505.07

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Solution

The fourth proportional to 23,115.44, 31,899.29 and 12,505.07 is: 17,256.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,115.44 : 31,899.29 = 12,505.07 : x
  2. Step 2: Convert to fraction form
    23,115.44/31,899.29 = 12,505.07/x
  3. Step 3: Cross multiply
    23,115.44x = 31,899.29 × 12,505.07
  4. Step 4: Simplify right side
    23,115.44x = 398,902,871.62
  5. Step 5: Solve for x
    x = 398,902,871.62/23,115.44
  6. Step 6: Final answer
    x = 17,256.99

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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.