Home / 28,536.18-39,377.79-15,958.50

Finding the Fourth Proportional to 28,536.18, 39,377.79 and 15,958.50

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Solution

The fourth proportional to 28,536.18, 39,377.79 and 15,958.50 is: 22,021.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.18 : 39,377.79 = 15,958.50 : x
  2. Step 2: Convert to fraction form
    28,536.18/39,377.79 = 15,958.50/x
  3. Step 3: Cross multiply
    28,536.18x = 39,377.79 × 15,958.50
  4. Step 4: Simplify right side
    28,536.18x = 628,410,461.72
  5. Step 5: Solve for x
    x = 628,410,461.72/28,536.18
  6. Step 6: Final answer
    x = 22,021.53

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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.