Home / 31,624.34-43,643.55-18,195.30

Finding the Fourth Proportional to 31,624.34, 43,643.55 and 18,195.30

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Solution

The fourth proportional to 31,624.34, 43,643.55 and 18,195.30 is: 25,110.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,624.34 : 43,643.55 = 18,195.30 : x
  2. Step 2: Convert to fraction form
    31,624.34/43,643.55 = 18,195.30/x
  3. Step 3: Cross multiply
    31,624.34x = 43,643.55 × 18,195.30
  4. Step 4: Simplify right side
    31,624.34x = 794,107,485.32
  5. Step 5: Solve for x
    x = 794,107,485.32/31,624.34
  6. Step 6: Final answer
    x = 25,110.65

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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.