Home / 27,763.49-38,267.74-20,687.33

Finding the Fourth Proportional to 27,763.49, 38,267.74 and 20,687.33

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Solution

The fourth proportional to 27,763.49, 38,267.74 and 20,687.33 is: 28,514.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,763.49 : 38,267.74 = 20,687.33 : x
  2. Step 2: Convert to fraction form
    27,763.49/38,267.74 = 20,687.33/x
  3. Step 3: Cross multiply
    27,763.49x = 38,267.74 × 20,687.33
  4. Step 4: Simplify right side
    27,763.49x = 791,657,487.26
  5. Step 5: Solve for x
    x = 791,657,487.26/27,763.49
  6. Step 6: Final answer
    x = 28,514.33

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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.