Home / 27,692.96-38,215.80-15,756.04

Finding the Fourth Proportional to 27,692.96, 38,215.80 and 15,756.04

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Solution

The fourth proportional to 27,692.96, 38,215.80 and 15,756.04 is: 21,743.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,692.96 : 38,215.80 = 15,756.04 : x
  2. Step 2: Convert to fraction form
    27,692.96/38,215.80 = 15,756.04/x
  3. Step 3: Cross multiply
    27,692.96x = 38,215.80 × 15,756.04
  4. Step 4: Simplify right side
    27,692.96x = 602,129,673.43
  5. Step 5: Solve for x
    x = 602,129,673.43/27,692.96
  6. Step 6: Final answer
    x = 21,743.06

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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.