Home / 23,102.87-31,881.83-12,492.50

Finding the Fourth Proportional to 23,102.87, 31,881.83 and 12,492.50

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Solution

The fourth proportional to 23,102.87, 31,881.83 and 12,492.50 is: 17,239.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,102.87 : 31,881.83 = 12,492.50 : x
  2. Step 2: Convert to fraction form
    23,102.87/31,881.83 = 12,492.50/x
  3. Step 3: Cross multiply
    23,102.87x = 31,881.83 × 12,492.50
  4. Step 4: Simplify right side
    23,102.87x = 398,283,539.40
  5. Step 5: Solve for x
    x = 398,283,539.40/23,102.87
  6. Step 6: Final answer
    x = 17,239.57

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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.