Home / 20,696.07-31,036.28-8,849.36

Finding the Fourth Proportional to 20,696.07, 31,036.28 and 8,849.36

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Solution

The fourth proportional to 20,696.07, 31,036.28 and 8,849.36 is: 13,270.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.07 : 31,036.28 = 8,849.36 : x
  2. Step 2: Convert to fraction form
    20,696.07/31,036.28 = 8,849.36/x
  3. Step 3: Cross multiply
    20,696.07x = 31,036.28 × 8,849.36
  4. Step 4: Simplify right side
    20,696.07x = 274,651,015.35
  5. Step 5: Solve for x
    x = 274,651,015.35/20,696.07
  6. Step 6: Final answer
    x = 13,270.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.