Home / 27,333.09-40,999.65-21,102.20

Finding the Fourth Proportional to 27,333.09, 40,999.65 and 21,102.20

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Solution

The fourth proportional to 27,333.09, 40,999.65 and 21,102.20 is: 31,653.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,333.09 : 40,999.65 = 21,102.20 : x
  2. Step 2: Convert to fraction form
    27,333.09/40,999.65 = 21,102.20/x
  3. Step 3: Cross multiply
    27,333.09x = 40,999.65 × 21,102.20
  4. Step 4: Simplify right side
    27,333.09x = 865,182,708.72
  5. Step 5: Solve for x
    x = 865,182,708.72/27,333.09
  6. Step 6: Final answer
    x = 31,653.31

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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.