Home / 28,713.42-39,628.08-16,138.17

Finding the Fourth Proportional to 28,713.42, 39,628.08 and 16,138.17

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Solution

The fourth proportional to 28,713.42, 39,628.08 and 16,138.17 is: 22,272.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,713.42 : 39,628.08 = 16,138.17 : x
  2. Step 2: Convert to fraction form
    28,713.42/39,628.08 = 16,138.17/x
  3. Step 3: Cross multiply
    28,713.42x = 39,628.08 × 16,138.17
  4. Step 4: Simplify right side
    28,713.42x = 639,524,691.81
  5. Step 5: Solve for x
    x = 639,524,691.81/28,713.42
  6. Step 6: Final answer
    x = 22,272.68

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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.