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Finding the Fourth Proportional to 36,878.88, 50,899.08 and 21,775.32

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Solution

The fourth proportional to 36,878.88, 50,899.08 and 21,775.32 is: 30,053.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,878.88 : 50,899.08 = 21,775.32 : x
  2. Step 2: Convert to fraction form
    36,878.88/50,899.08 = 21,775.32/x
  3. Step 3: Cross multiply
    36,878.88x = 50,899.08 × 21,775.32
  4. Step 4: Simplify right side
    36,878.88x = 1,108,343,754.71
  5. Step 5: Solve for x
    x = 1,108,343,754.71/36,878.88
  6. Step 6: Final answer
    x = 30,053.62

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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.