Home / 23,087.90-31,857.28-13,653.02

Finding the Fourth Proportional to 23,087.90, 31,857.28 and 13,653.02

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Solution

The fourth proportional to 23,087.90, 31,857.28 and 13,653.02 is: 18,838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,087.90 : 31,857.28 = 13,653.02 : x
  2. Step 2: Convert to fraction form
    23,087.90/31,857.28 = 13,653.02/x
  3. Step 3: Cross multiply
    23,087.90x = 31,857.28 × 13,653.02
  4. Step 4: Simplify right side
    23,087.90x = 434,948,080.99
  5. Step 5: Solve for x
    x = 434,948,080.99/23,087.90
  6. Step 6: Final answer
    x = 18,838.79

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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.