Home / 27,692.33-38,214.92-15,755.40

Finding the Fourth Proportional to 27,692.33, 38,214.92 and 15,755.40

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Solution

The fourth proportional to 27,692.33, 38,214.92 and 15,755.40 is: 21,742.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,692.33 : 38,214.92 = 15,755.40 : x
  2. Step 2: Convert to fraction form
    27,692.33/38,214.92 = 15,755.40/x
  3. Step 3: Cross multiply
    27,692.33x = 38,214.92 × 15,755.40
  4. Step 4: Simplify right side
    27,692.33x = 602,091,271.79
  5. Step 5: Solve for x
    x = 602,091,271.79/27,692.33
  6. Step 6: Final answer
    x = 21,742.17

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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.