Home / 22,020.63-30,383.70-13,071.12

Finding the Fourth Proportional to 22,020.63, 30,383.70 and 13,071.12

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Solution

The fourth proportional to 22,020.63, 30,383.70 and 13,071.12 is: 18,035.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,020.63 : 30,383.70 = 13,071.12 : x
  2. Step 2: Convert to fraction form
    22,020.63/30,383.70 = 13,071.12/x
  3. Step 3: Cross multiply
    22,020.63x = 30,383.70 × 13,071.12
  4. Step 4: Simplify right side
    22,020.63x = 397,148,988.74
  5. Step 5: Solve for x
    x = 397,148,988.74/22,020.63
  6. Step 6: Final answer
    x = 18,035.31

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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.