Home / 31,746-43,809.48-18,500.56

Finding the Fourth Proportional to 31,746, 43,809.48 and 18,500.56

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Solution

The fourth proportional to 31,746, 43,809.48 and 18,500.56 is: 25,530.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,746 : 43,809.48 = 18,500.56 : x
  2. Step 2: Convert to fraction form
    31,746/43,809.48 = 18,500.56/x
  3. Step 3: Cross multiply
    31,746x = 43,809.48 × 18,500.56
  4. Step 4: Simplify right side
    31,746x = 810,499,913.31
  5. Step 5: Solve for x
    x = 810,499,913.31/31,746
  6. Step 6: Final answer
    x = 25,530.77

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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.