Home / 21,062.84-31,571.56-11,192.18

Finding the Fourth Proportional to 21,062.84, 31,571.56 and 11,192.18

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Solution

The fourth proportional to 21,062.84, 31,571.56 and 11,192.18 is: 16,776.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.84 : 31,571.56 = 11,192.18 : x
  2. Step 2: Convert to fraction form
    21,062.84/31,571.56 = 11,192.18/x
  3. Step 3: Cross multiply
    21,062.84x = 31,571.56 × 11,192.18
  4. Step 4: Simplify right side
    21,062.84x = 353,354,582.40
  5. Step 5: Solve for x
    x = 353,354,582.40/21,062.84
  6. Step 6: Final answer
    x = 16,776.21

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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.