Home / 27,692.24-38,160.36-19,720.40

Finding the Fourth Proportional to 27,692.24, 38,160.36 and 19,720.40

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Solution

The fourth proportional to 27,692.24, 38,160.36 and 19,720.40 is: 27,175.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,692.24 : 38,160.36 = 19,720.40 : x
  2. Step 2: Convert to fraction form
    27,692.24/38,160.36 = 19,720.40/x
  3. Step 3: Cross multiply
    27,692.24x = 38,160.36 × 19,720.40
  4. Step 4: Simplify right side
    27,692.24x = 752,537,563.34
  5. Step 5: Solve for x
    x = 752,537,563.34/27,692.24
  6. Step 6: Final answer
    x = 27,175.03

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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.