Home / 29,119.05-40,135.89-20,610.25

Finding the Fourth Proportional to 29,119.05, 40,135.89 and 20,610.25

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Solution

The fourth proportional to 29,119.05, 40,135.89 and 20,610.25 is: 28,407.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,119.05 : 40,135.89 = 20,610.25 : x
  2. Step 2: Convert to fraction form
    29,119.05/40,135.89 = 20,610.25/x
  3. Step 3: Cross multiply
    29,119.05x = 40,135.89 × 20,610.25
  4. Step 4: Simplify right side
    29,119.05x = 827,210,928.82
  5. Step 5: Solve for x
    x = 827,210,928.82/29,119.05
  6. Step 6: Final answer
    x = 28,407.89

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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.