Home / 27,813.23-38,387.58-21,751.46

Finding the Fourth Proportional to 27,813.23, 38,387.58 and 21,751.46

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Solution

The fourth proportional to 27,813.23, 38,387.58 and 21,751.46 is: 30,021.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,813.23 : 38,387.58 = 21,751.46 : x
  2. Step 2: Convert to fraction form
    27,813.23/38,387.58 = 21,751.46/x
  3. Step 3: Cross multiply
    27,813.23x = 38,387.58 × 21,751.46
  4. Step 4: Simplify right side
    27,813.23x = 834,985,910.87
  5. Step 5: Solve for x
    x = 834,985,910.87/27,813.23
  6. Step 6: Final answer
    x = 30,021.18

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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.