Home / 28,907.82-39,892.50-18,306.14

Finding the Fourth Proportional to 28,907.82, 39,892.50 and 18,306.14

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Solution

The fourth proportional to 28,907.82, 39,892.50 and 18,306.14 is: 25,262.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,907.82 : 39,892.50 = 18,306.14 : x
  2. Step 2: Convert to fraction form
    28,907.82/39,892.50 = 18,306.14/x
  3. Step 3: Cross multiply
    28,907.82x = 39,892.50 × 18,306.14
  4. Step 4: Simplify right side
    28,907.82x = 730,277,490.49
  5. Step 5: Solve for x
    x = 730,277,490.49/28,907.82
  6. Step 6: Final answer
    x = 25,262.28

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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.