Home / 28,187.34-38,899.15-16,087.58

Finding the Fourth Proportional to 28,187.34, 38,899.15 and 16,087.58

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Solution

The fourth proportional to 28,187.34, 38,899.15 and 16,087.58 is: 22,201.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,187.34 : 38,899.15 = 16,087.58 : x
  2. Step 2: Convert to fraction form
    28,187.34/38,899.15 = 16,087.58/x
  3. Step 3: Cross multiply
    28,187.34x = 38,899.15 × 16,087.58
  4. Step 4: Simplify right side
    28,187.34x = 625,793,150.64
  5. Step 5: Solve for x
    x = 625,793,150.64/28,187.34
  6. Step 6: Final answer
    x = 22,201.22

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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.