Home / 18,935.93-28,403.88-18,908.57

Finding the Fourth Proportional to 18,935.93, 28,403.88 and 18,908.57

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Solution

The fourth proportional to 18,935.93, 28,403.88 and 18,908.57 is: 28,362.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,935.93 : 28,403.88 = 18,908.57 : x
  2. Step 2: Convert to fraction form
    18,935.93/28,403.88 = 18,908.57/x
  3. Step 3: Cross multiply
    18,935.93x = 28,403.88 × 18,908.57
  4. Step 4: Simplify right side
    18,935.93x = 537,076,753.25
  5. Step 5: Solve for x
    x = 537,076,753.25/18,935.93
  6. Step 6: Final answer
    x = 28,362.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.