Home / 28,390.37-42,611.87-14,360.36

Finding the Fourth Proportional to 28,390.37, 42,611.87 and 14,360.36

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Solution

The fourth proportional to 28,390.37, 42,611.87 and 14,360.36 is: 21,553.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,390.37 : 42,611.87 = 14,360.36 : x
  2. Step 2: Convert to fraction form
    28,390.37/42,611.87 = 14,360.36/x
  3. Step 3: Cross multiply
    28,390.37x = 42,611.87 × 14,360.36
  4. Step 4: Simplify right side
    28,390.37x = 611,921,616.31
  5. Step 5: Solve for x
    x = 611,921,616.31/28,390.37
  6. Step 6: Final answer
    x = 21,553.85

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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.