Home / 28,705.24-39,620.12-22,651.84

Finding the Fourth Proportional to 28,705.24, 39,620.12 and 22,651.84

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Solution

The fourth proportional to 28,705.24, 39,620.12 and 22,651.84 is: 31,264.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,705.24 : 39,620.12 = 22,651.84 : x
  2. Step 2: Convert to fraction form
    28,705.24/39,620.12 = 22,651.84/x
  3. Step 3: Cross multiply
    28,705.24x = 39,620.12 × 22,651.84
  4. Step 4: Simplify right side
    28,705.24x = 897,468,619.02
  5. Step 5: Solve for x
    x = 897,468,619.02/28,705.24
  6. Step 6: Final answer
    x = 31,264.98

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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.