Home / 26,821.28-37,012.92-15,490.64

Finding the Fourth Proportional to 26,821.28, 37,012.92 and 15,490.64

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Solution

The fourth proportional to 26,821.28, 37,012.92 and 15,490.64 is: 21,376.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,821.28 : 37,012.92 = 15,490.64 : x
  2. Step 2: Convert to fraction form
    26,821.28/37,012.92 = 15,490.64/x
  3. Step 3: Cross multiply
    26,821.28x = 37,012.92 × 15,490.64
  4. Step 4: Simplify right side
    26,821.28x = 573,353,819.07
  5. Step 5: Solve for x
    x = 573,353,819.07/26,821.28
  6. Step 6: Final answer
    x = 21,376.83

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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.