Home / 29,187.81-40,247.15-19,739.97

Finding the Fourth Proportional to 29,187.81, 40,247.15 and 19,739.97

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Solution

The fourth proportional to 29,187.81, 40,247.15 and 19,739.97 is: 27,219.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,187.81 : 40,247.15 = 19,739.97 : x
  2. Step 2: Convert to fraction form
    29,187.81/40,247.15 = 19,739.97/x
  3. Step 3: Cross multiply
    29,187.81x = 40,247.15 × 19,739.97
  4. Step 4: Simplify right side
    29,187.81x = 794,477,434.89
  5. Step 5: Solve for x
    x = 794,477,434.89/29,187.81
  6. Step 6: Final answer
    x = 27,219.49

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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.