Home / 28,722.18-39,632.32-16,144.50

Finding the Fourth Proportional to 28,722.18, 39,632.32 and 16,144.50

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Solution

The fourth proportional to 28,722.18, 39,632.32 and 16,144.50 is: 22,277.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.18 : 39,632.32 = 16,144.50 : x
  2. Step 2: Convert to fraction form
    28,722.18/39,632.32 = 16,144.50/x
  3. Step 3: Cross multiply
    28,722.18x = 39,632.32 × 16,144.50
  4. Step 4: Simplify right side
    28,722.18x = 639,843,990.24
  5. Step 5: Solve for x
    x = 639,843,990.24/28,722.18
  6. Step 6: Final answer
    x = 22,277.00

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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.