Home / 28,577.21-39,674.10-27,721.85

Finding the Fourth Proportional to 28,577.21, 39,674.10 and 27,721.85

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Solution

The fourth proportional to 28,577.21, 39,674.10 and 27,721.85 is: 38,486.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,577.21 : 39,674.10 = 27,721.85 : x
  2. Step 2: Convert to fraction form
    28,577.21/39,674.10 = 27,721.85/x
  3. Step 3: Cross multiply
    28,577.21x = 39,674.10 × 27,721.85
  4. Step 4: Simplify right side
    28,577.21x = 1,099,839,354.67
  5. Step 5: Solve for x
    x = 1,099,839,354.67/28,577.21
  6. Step 6: Final answer
    x = 38,486.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.