Home / 28,935.41-39,930.68-16,188.53

Finding the Fourth Proportional to 28,935.41, 39,930.68 and 16,188.53

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Solution

The fourth proportional to 28,935.41, 39,930.68 and 16,188.53 is: 22,340.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,935.41 : 39,930.68 = 16,188.53 : x
  2. Step 2: Convert to fraction form
    28,935.41/39,930.68 = 16,188.53/x
  3. Step 3: Cross multiply
    28,935.41x = 39,930.68 × 16,188.53
  4. Step 4: Simplify right side
    28,935.41x = 646,418,730.50
  5. Step 5: Solve for x
    x = 646,418,730.50/28,935.41
  6. Step 6: Final answer
    x = 22,340.06

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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.