Home / 47,905.62-66,119.67-28,786.38

Finding the Fourth Proportional to 47,905.62, 66,119.67 and 28,786.38

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Solution

The fourth proportional to 47,905.62, 66,119.67 and 28,786.38 is: 39,731.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,905.62 : 66,119.67 = 28,786.38 : x
  2. Step 2: Convert to fraction form
    47,905.62/66,119.67 = 28,786.38/x
  3. Step 3: Cross multiply
    47,905.62x = 66,119.67 × 28,786.38
  4. Step 4: Simplify right side
    47,905.62x = 1,903,345,946.09
  5. Step 5: Solve for x
    x = 1,903,345,946.09/47,905.62
  6. Step 6: Final answer
    x = 39,731.16

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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.