Home / 28,587.87-42,896.43-13,611.92

Finding the Fourth Proportional to 28,587.87, 42,896.43 and 13,611.92

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Solution

The fourth proportional to 28,587.87, 42,896.43 and 13,611.92 is: 20,424.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,587.87 : 42,896.43 = 13,611.92 : x
  2. Step 2: Convert to fraction form
    28,587.87/42,896.43 = 13,611.92/x
  3. Step 3: Cross multiply
    28,587.87x = 42,896.43 × 13,611.92
  4. Step 4: Simplify right side
    28,587.87x = 583,902,773.45
  5. Step 5: Solve for x
    x = 583,902,773.45/28,587.87
  6. Step 6: Final answer
    x = 20,424.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.