Home / 21,048.26-29,048.37-11,618.78

Finding the Fourth Proportional to 21,048.26, 29,048.37 and 11,618.78

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Solution

The fourth proportional to 21,048.26, 29,048.37 and 11,618.78 is: 16,034.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048.26 : 29,048.37 = 11,618.78 : x
  2. Step 2: Convert to fraction form
    21,048.26/29,048.37 = 11,618.78/x
  3. Step 3: Cross multiply
    21,048.26x = 29,048.37 × 11,618.78
  4. Step 4: Simplify right side
    21,048.26x = 337,506,620.39
  5. Step 5: Solve for x
    x = 337,506,620.39/21,048.26
  6. Step 6: Final answer
    x = 16,034.89

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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.