Home / 26,120.51-39,142.34-15,435.87

Finding the Fourth Proportional to 26,120.51, 39,142.34 and 15,435.87

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Solution

The fourth proportional to 26,120.51, 39,142.34 and 15,435.87 is: 23,131.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,120.51 : 39,142.34 = 15,435.87 : x
  2. Step 2: Convert to fraction form
    26,120.51/39,142.34 = 15,435.87/x
  3. Step 3: Cross multiply
    26,120.51x = 39,142.34 × 15,435.87
  4. Step 4: Simplify right side
    26,120.51x = 604,195,905.66
  5. Step 5: Solve for x
    x = 604,195,905.66/26,120.51
  6. Step 6: Final answer
    x = 23,131.09

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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.