Home / 26,190.76-39,315.18-13,039.60

Finding the Fourth Proportional to 26,190.76, 39,315.18 and 13,039.60

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Solution

The fourth proportional to 26,190.76, 39,315.18 and 13,039.60 is: 19,573.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,190.76 : 39,315.18 = 13,039.60 : x
  2. Step 2: Convert to fraction form
    26,190.76/39,315.18 = 13,039.60/x
  3. Step 3: Cross multiply
    26,190.76x = 39,315.18 × 13,039.60
  4. Step 4: Simplify right side
    26,190.76x = 512,654,221.13
  5. Step 5: Solve for x
    x = 512,654,221.13/26,190.76
  6. Step 6: Final answer
    x = 19,573.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.