Home / 27,821.61-38,372.88-19,323.75

Finding the Fourth Proportional to 27,821.61, 38,372.88 and 19,323.75

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Solution

The fourth proportional to 27,821.61, 38,372.88 and 19,323.75 is: 26,652.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,821.61 : 38,372.88 = 19,323.75 : x
  2. Step 2: Convert to fraction form
    27,821.61/38,372.88 = 19,323.75/x
  3. Step 3: Cross multiply
    27,821.61x = 38,372.88 × 19,323.75
  4. Step 4: Simplify right side
    27,821.61x = 741,507,939.90
  5. Step 5: Solve for x
    x = 741,507,939.90/27,821.61
  6. Step 6: Final answer
    x = 26,652.23

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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.