Home / 31,553.04-43,544.28-18,126.74

Finding the Fourth Proportional to 31,553.04, 43,544.28 and 18,126.74

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Solution

The fourth proportional to 31,553.04, 43,544.28 and 18,126.74 is: 25,015.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,553.04 : 43,544.28 = 18,126.74 : x
  2. Step 2: Convert to fraction form
    31,553.04/43,544.28 = 18,126.74/x
  3. Step 3: Cross multiply
    31,553.04x = 43,544.28 × 18,126.74
  4. Step 4: Simplify right side
    31,553.04x = 789,315,842.05
  5. Step 5: Solve for x
    x = 789,315,842.05/31,553.04
  6. Step 6: Final answer
    x = 25,015.52

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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.