Home / 28,713.50-39,624.24-16,138.28

Finding the Fourth Proportional to 28,713.50, 39,624.24 and 16,138.28

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Solution

The fourth proportional to 28,713.50, 39,624.24 and 16,138.28 is: 22,270.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,713.50 : 39,624.24 = 16,138.28 : x
  2. Step 2: Convert to fraction form
    28,713.50/39,624.24 = 16,138.28/x
  3. Step 3: Cross multiply
    28,713.50x = 39,624.24 × 16,138.28
  4. Step 4: Simplify right side
    28,713.50x = 639,467,079.91
  5. Step 5: Solve for x
    x = 639,467,079.91/28,713.50
  6. Step 6: Final answer
    x = 22,270.61

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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.