Home / 31,808.56-43,897.80-18,382.27

Finding the Fourth Proportional to 31,808.56, 43,897.80 and 18,382.27

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Solution

The fourth proportional to 31,808.56, 43,897.80 and 18,382.27 is: 25,368.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,808.56 : 43,897.80 = 18,382.27 : x
  2. Step 2: Convert to fraction form
    31,808.56/43,897.80 = 18,382.27/x
  3. Step 3: Cross multiply
    31,808.56x = 43,897.80 × 18,382.27
  4. Step 4: Simplify right side
    31,808.56x = 806,941,212.01
  5. Step 5: Solve for x
    x = 806,941,212.01/31,808.56
  6. Step 6: Final answer
    x = 25,368.68

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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.