Home / 28,392.73-39,181.83-15,646.06

Finding the Fourth Proportional to 28,392.73, 39,181.83 and 15,646.06

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Solution

The fourth proportional to 28,392.73, 39,181.83 and 15,646.06 is: 21,591.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,392.73 : 39,181.83 = 15,646.06 : x
  2. Step 2: Convert to fraction form
    28,392.73/39,181.83 = 15,646.06/x
  3. Step 3: Cross multiply
    28,392.73x = 39,181.83 × 15,646.06
  4. Step 4: Simplify right side
    28,392.73x = 613,041,253.39
  5. Step 5: Solve for x
    x = 613,041,253.39/28,392.73
  6. Step 6: Final answer
    x = 21,591.49

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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.