Home / 26,690.50-36,836.13-15,512.50

Finding the Fourth Proportional to 26,690.50, 36,836.13 and 15,512.50

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Solution

The fourth proportional to 26,690.50, 36,836.13 and 15,512.50 is: 21,409.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,690.50 : 36,836.13 = 15,512.50 : x
  2. Step 2: Convert to fraction form
    26,690.50/36,836.13 = 15,512.50/x
  3. Step 3: Cross multiply
    26,690.50x = 36,836.13 × 15,512.50
  4. Step 4: Simplify right side
    26,690.50x = 571,420,466.63
  5. Step 5: Solve for x
    x = 571,420,466.63/26,690.50
  6. Step 6: Final answer
    x = 21,409.13

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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.