Home / 28,115.30-38,792.86-16,178.64

Finding the Fourth Proportional to 28,115.30, 38,792.86 and 16,178.64

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Solution

The fourth proportional to 28,115.30, 38,792.86 and 16,178.64 is: 22,322.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115.30 : 38,792.86 = 16,178.64 : x
  2. Step 2: Convert to fraction form
    28,115.30/38,792.86 = 16,178.64/x
  3. Step 3: Cross multiply
    28,115.30x = 38,792.86 × 16,178.64
  4. Step 4: Simplify right side
    28,115.30x = 627,615,522.55
  5. Step 5: Solve for x
    x = 627,615,522.55/28,115.30
  6. Step 6: Final answer
    x = 22,322.92

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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.