Home / 27,991.25-38,610.56-16,653.07

Finding the Fourth Proportional to 27,991.25, 38,610.56 and 16,653.07

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Solution

The fourth proportional to 27,991.25, 38,610.56 and 16,653.07 is: 22,970.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,991.25 : 38,610.56 = 16,653.07 : x
  2. Step 2: Convert to fraction form
    27,991.25/38,610.56 = 16,653.07/x
  3. Step 3: Cross multiply
    27,991.25x = 38,610.56 × 16,653.07
  4. Step 4: Simplify right side
    27,991.25x = 642,984,303.53
  5. Step 5: Solve for x
    x = 642,984,303.53/27,991.25
  6. Step 6: Final answer
    x = 22,970.91

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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.