Home / 28,110.78-38,801.40-16,182.10

Finding the Fourth Proportional to 28,110.78, 38,801.40 and 16,182.10

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Solution

The fourth proportional to 28,110.78, 38,801.40 and 16,182.10 is: 22,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.78 : 38,801.40 = 16,182.10 : x
  2. Step 2: Convert to fraction form
    28,110.78/38,801.40 = 16,182.10/x
  3. Step 3: Cross multiply
    28,110.78x = 38,801.40 × 16,182.10
  4. Step 4: Simplify right side
    28,110.78x = 627,888,134.94
  5. Step 5: Solve for x
    x = 627,888,134.94/28,110.78
  6. Step 6: Final answer
    x = 22,336.20

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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.