Home / 31,574.96-43,571.76-18,144.08

Finding the Fourth Proportional to 31,574.96, 43,571.76 and 18,144.08

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Solution

The fourth proportional to 31,574.96, 43,571.76 and 18,144.08 is: 25,037.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,574.96 : 43,571.76 = 18,144.08 : x
  2. Step 2: Convert to fraction form
    31,574.96/43,571.76 = 18,144.08/x
  3. Step 3: Cross multiply
    31,574.96x = 43,571.76 × 18,144.08
  4. Step 4: Simplify right side
    31,574.96x = 790,569,499.18
  5. Step 5: Solve for x
    x = 790,569,499.18/31,574.96
  6. Step 6: Final answer
    x = 25,037.86

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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.