Home / 28,623.24-42,913.26-18,765

Finding the Fourth Proportional to 28,623.24, 42,913.26 and 18,765

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Solution

The fourth proportional to 28,623.24, 42,913.26 and 18,765 is: 28,133.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,623.24 : 42,913.26 = 18,765 : x
  2. Step 2: Convert to fraction form
    28,623.24/42,913.26 = 18,765/x
  3. Step 3: Cross multiply
    28,623.24x = 42,913.26 × 18,765
  4. Step 4: Simplify right side
    28,623.24x = 805,267,323.90
  5. Step 5: Solve for x
    x = 805,267,323.90/28,623.24
  6. Step 6: Final answer
    x = 28,133.34

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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.