Home / 28,116.05-38,804.40-16,178.58

Finding the Fourth Proportional to 28,116.05, 38,804.40 and 16,178.58

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Solution

The fourth proportional to 28,116.05, 38,804.40 and 16,178.58 is: 22,328.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.05 : 38,804.40 = 16,178.58 : x
  2. Step 2: Convert to fraction form
    28,116.05/38,804.40 = 16,178.58/x
  3. Step 3: Cross multiply
    28,116.05x = 38,804.40 × 16,178.58
  4. Step 4: Simplify right side
    28,116.05x = 627,800,089.75
  5. Step 5: Solve for x
    x = 627,800,089.75/28,116.05
  6. Step 6: Final answer
    x = 22,328.89

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Half scale
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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.