Home / 20,696.49-31,016.78-14,840.25

Finding the Fourth Proportional to 20,696.49, 31,016.78 and 14,840.25

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Solution

The fourth proportional to 20,696.49, 31,016.78 and 14,840.25 is: 22,240.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.49 : 31,016.78 = 14,840.25 : x
  2. Step 2: Convert to fraction form
    20,696.49/31,016.78 = 14,840.25/x
  3. Step 3: Cross multiply
    20,696.49x = 31,016.78 × 14,840.25
  4. Step 4: Simplify right side
    20,696.49x = 460,296,695.19
  5. Step 5: Solve for x
    x = 460,296,695.19/20,696.49
  6. Step 6: Final answer
    x = 22,240.33

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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.