Home / 31,548.18-43,536.18-18,123.64

Finding the Fourth Proportional to 31,548.18, 43,536.18 and 18,123.64

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Solution

The fourth proportional to 31,548.18, 43,536.18 and 18,123.64 is: 25,010.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,548.18 : 43,536.18 = 18,123.64 : x
  2. Step 2: Convert to fraction form
    31,548.18/43,536.18 = 18,123.64/x
  3. Step 3: Cross multiply
    31,548.18x = 43,536.18 × 18,123.64
  4. Step 4: Simplify right side
    31,548.18x = 789,034,053.30
  5. Step 5: Solve for x
    x = 789,034,053.30/31,548.18
  6. Step 6: Final answer
    x = 25,010.45

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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.