Home / 21,747.63-30,010.73-12,316.26

Finding the Fourth Proportional to 21,747.63, 30,010.73 and 12,316.26

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Solution

The fourth proportional to 21,747.63, 30,010.73 and 12,316.26 is: 16,995.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,747.63 : 30,010.73 = 12,316.26 : x
  2. Step 2: Convert to fraction form
    21,747.63/30,010.73 = 12,316.26/x
  3. Step 3: Cross multiply
    21,747.63x = 30,010.73 × 12,316.26
  4. Step 4: Simplify right side
    21,747.63x = 369,619,891.89
  5. Step 5: Solve for x
    x = 369,619,891.89/21,747.63
  6. Step 6: Final answer
    x = 16,995.87

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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.