Home / 26,821.56-37,011.96-15,490.20

Finding the Fourth Proportional to 26,821.56, 37,011.96 and 15,490.20

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Solution

The fourth proportional to 26,821.56, 37,011.96 and 15,490.20 is: 21,375.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,821.56 : 37,011.96 = 15,490.20 : x
  2. Step 2: Convert to fraction form
    26,821.56/37,011.96 = 15,490.20/x
  3. Step 3: Cross multiply
    26,821.56x = 37,011.96 × 15,490.20
  4. Step 4: Simplify right side
    26,821.56x = 573,322,662.79
  5. Step 5: Solve for x
    x = 573,322,662.79/26,821.56
  6. Step 6: Final answer
    x = 21,375.44

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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.