Home / 31,347.27-43,259.23-17,918.81

Finding the Fourth Proportional to 31,347.27, 43,259.23 and 17,918.81

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Solution

The fourth proportional to 31,347.27, 43,259.23 and 17,918.81 is: 24,727.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,347.27 : 43,259.23 = 17,918.81 : x
  2. Step 2: Convert to fraction form
    31,347.27/43,259.23 = 17,918.81/x
  3. Step 3: Cross multiply
    31,347.27x = 43,259.23 × 17,918.81
  4. Step 4: Simplify right side
    31,347.27x = 775,153,833.52
  5. Step 5: Solve for x
    x = 775,153,833.52/31,347.27
  6. Step 6: Final answer
    x = 24,727.96

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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.