Home / 23,115.66-31,899.45-12,505.14

Finding the Fourth Proportional to 23,115.66, 31,899.45 and 12,505.14

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Solution

The fourth proportional to 23,115.66, 31,899.45 and 12,505.14 is: 17,257.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,115.66 : 31,899.45 = 12,505.14 : x
  2. Step 2: Convert to fraction form
    23,115.66/31,899.45 = 12,505.14/x
  3. Step 3: Cross multiply
    23,115.66x = 31,899.45 × 12,505.14
  4. Step 4: Simplify right side
    23,115.66x = 398,907,088.17
  5. Step 5: Solve for x
    x = 398,907,088.17/23,115.66
  6. Step 6: Final answer
    x = 17,257.01

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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.