Home / 28,621.64-42,944.81-13,841.70

Finding the Fourth Proportional to 28,621.64, 42,944.81 and 13,841.70

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Solution

The fourth proportional to 28,621.64, 42,944.81 and 13,841.70 is: 20,768.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,621.64 : 42,944.81 = 13,841.70 : x
  2. Step 2: Convert to fraction form
    28,621.64/42,944.81 = 13,841.70/x
  3. Step 3: Cross multiply
    28,621.64x = 42,944.81 × 13,841.70
  4. Step 4: Simplify right side
    28,621.64x = 594,429,107.37
  5. Step 5: Solve for x
    x = 594,429,107.37/28,621.64
  6. Step 6: Final answer
    x = 20,768.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.