Home / 20,696.96-31,022.76-9,600.32

Finding the Fourth Proportional to 20,696.96, 31,022.76 and 9,600.32

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Solution

The fourth proportional to 20,696.96, 31,022.76 and 9,600.32 is: 14,389.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.96 : 31,022.76 = 9,600.32 : x
  2. Step 2: Convert to fraction form
    20,696.96/31,022.76 = 9,600.32/x
  3. Step 3: Cross multiply
    20,696.96x = 31,022.76 × 9,600.32
  4. Step 4: Simplify right side
    20,696.96x = 297,828,423.28
  5. Step 5: Solve for x
    x = 297,828,423.28/20,696.96
  6. Step 6: Final answer
    x = 14,389.96

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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.