Home / 28,178.64-38,877.71-16,240.37

Finding the Fourth Proportional to 28,178.64, 38,877.71 and 16,240.37

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Solution

The fourth proportional to 28,178.64, 38,877.71 and 16,240.37 is: 22,406.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,178.64 : 38,877.71 = 16,240.37 : x
  2. Step 2: Convert to fraction form
    28,178.64/38,877.71 = 16,240.37/x
  3. Step 3: Cross multiply
    28,178.64x = 38,877.71 × 16,240.37
  4. Step 4: Simplify right side
    28,178.64x = 631,388,119.56
  5. Step 5: Solve for x
    x = 631,388,119.56/28,178.64
  6. Step 6: Final answer
    x = 22,406.62

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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.