Home / 28,870.92-39,835.14-17,540.12

Finding the Fourth Proportional to 28,870.92, 39,835.14 and 17,540.12

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Solution

The fourth proportional to 28,870.92, 39,835.14 and 17,540.12 is: 24,201.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.92 : 39,835.14 = 17,540.12 : x
  2. Step 2: Convert to fraction form
    28,870.92/39,835.14 = 17,540.12/x
  3. Step 3: Cross multiply
    28,870.92x = 39,835.14 × 17,540.12
  4. Step 4: Simplify right side
    28,870.92x = 698,713,135.82
  5. Step 5: Solve for x
    x = 698,713,135.82/28,870.92
  6. Step 6: Final answer
    x = 24,201.28

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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.