Home / 23,115.42-31,899.54-12,505.26

Finding the Fourth Proportional to 23,115.42, 31,899.54 and 12,505.26

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Solution

The fourth proportional to 23,115.42, 31,899.54 and 12,505.26 is: 17,257.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,115.42 : 31,899.54 = 12,505.26 : x
  2. Step 2: Convert to fraction form
    23,115.42/31,899.54 = 12,505.26/x
  3. Step 3: Cross multiply
    23,115.42x = 31,899.54 × 12,505.26
  4. Step 4: Simplify right side
    23,115.42x = 398,912,041.58
  5. Step 5: Solve for x
    x = 398,912,041.58/23,115.42
  6. Step 6: Final answer
    x = 17,257.40

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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.