Home / 28,764.28-39,685.44-16,186.60

Finding the Fourth Proportional to 28,764.28, 39,685.44 and 16,186.60

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Solution

The fourth proportional to 28,764.28, 39,685.44 and 16,186.60 is: 22,332.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,764.28 : 39,685.44 = 16,186.60 : x
  2. Step 2: Convert to fraction form
    28,764.28/39,685.44 = 16,186.60/x
  3. Step 3: Cross multiply
    28,764.28x = 39,685.44 × 16,186.60
  4. Step 4: Simplify right side
    28,764.28x = 642,372,343.10
  5. Step 5: Solve for x
    x = 642,372,343.10/28,764.28
  6. Step 6: Final answer
    x = 22,332.29

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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.