Home / 28,187.21-38,898.98-16,087.45

Finding the Fourth Proportional to 28,187.21, 38,898.98 and 16,087.45

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Solution

The fourth proportional to 28,187.21, 38,898.98 and 16,087.45 is: 22,201.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,187.21 : 38,898.98 = 16,087.45 : x
  2. Step 2: Convert to fraction form
    28,187.21/38,898.98 = 16,087.45/x
  3. Step 3: Cross multiply
    28,187.21x = 38,898.98 × 16,087.45
  4. Step 4: Simplify right side
    28,187.21x = 625,785,506.03
  5. Step 5: Solve for x
    x = 625,785,506.03/28,187.21
  6. Step 6: Final answer
    x = 22,201.04

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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.