Home / 26,820.22-37,013.52-15,491.80

Finding the Fourth Proportional to 26,820.22, 37,013.52 and 15,491.80

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Solution

The fourth proportional to 26,820.22, 37,013.52 and 15,491.80 is: 21,379.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,820.22 : 37,013.52 = 15,491.80 : x
  2. Step 2: Convert to fraction form
    26,820.22/37,013.52 = 15,491.80/x
  3. Step 3: Cross multiply
    26,820.22x = 37,013.52 × 15,491.80
  4. Step 4: Simplify right side
    26,820.22x = 573,406,049.14
  5. Step 5: Solve for x
    x = 573,406,049.14/26,820.22
  6. Step 6: Final answer
    x = 21,379.62

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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.