Home / 21,255.09-31,871.66-6,260.27

Finding the Fourth Proportional to 21,255.09, 31,871.66 and 6,260.27

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Solution

The fourth proportional to 21,255.09, 31,871.66 and 6,260.27 is: 9,387.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,255.09 : 31,871.66 = 6,260.27 : x
  2. Step 2: Convert to fraction form
    21,255.09/31,871.66 = 6,260.27/x
  3. Step 3: Cross multiply
    21,255.09x = 31,871.66 × 6,260.27
  4. Step 4: Simplify right side
    21,255.09x = 199,525,220.78
  5. Step 5: Solve for x
    x = 199,525,220.78/21,255.09
  6. Step 6: Final answer
    x = 9,387.17

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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.