Home / 31,723.84-43,775.16-18,295.04

Finding the Fourth Proportional to 31,723.84, 43,775.16 and 18,295.04

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Solution

The fourth proportional to 31,723.84, 43,775.16 and 18,295.04 is: 25,245.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,723.84 : 43,775.16 = 18,295.04 : x
  2. Step 2: Convert to fraction form
    31,723.84/43,775.16 = 18,295.04/x
  3. Step 3: Cross multiply
    31,723.84x = 43,775.16 × 18,295.04
  4. Step 4: Simplify right side
    31,723.84x = 800,868,303.21
  5. Step 5: Solve for x
    x = 800,868,303.21/31,723.84
  6. Step 6: Final answer
    x = 25,245.00

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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.