Home / 16,176.08-22,335.15-15,917.74

Finding the Fourth Proportional to 16,176.08, 22,335.15 and 15,917.74

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Solution

The fourth proportional to 16,176.08, 22,335.15 and 15,917.74 is: 21,978.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,176.08 : 22,335.15 = 15,917.74 : x
  2. Step 2: Convert to fraction form
    16,176.08/22,335.15 = 15,917.74/x
  3. Step 3: Cross multiply
    16,176.08x = 22,335.15 × 15,917.74
  4. Step 4: Simplify right side
    16,176.08x = 355,524,995.03
  5. Step 5: Solve for x
    x = 355,524,995.03/16,176.08
  6. Step 6: Final answer
    x = 21,978.45

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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.