Home / 23,020.36-31,770.80-12,949.18

Finding the Fourth Proportional to 23,020.36, 31,770.80 and 12,949.18

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Solution

The fourth proportional to 23,020.36, 31,770.80 and 12,949.18 is: 17,871.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,020.36 : 31,770.80 = 12,949.18 : x
  2. Step 2: Convert to fraction form
    23,020.36/31,770.80 = 12,949.18/x
  3. Step 3: Cross multiply
    23,020.36x = 31,770.80 × 12,949.18
  4. Step 4: Simplify right side
    23,020.36x = 411,405,807.94
  5. Step 5: Solve for x
    x = 411,405,807.94/23,020.36
  6. Step 6: Final answer
    x = 17,871.39

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1.5x scale

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.