Home / 31,773.85-43,849.98-18,345.67

Finding the Fourth Proportional to 31,773.85, 43,849.98 and 18,345.67

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Solution

The fourth proportional to 31,773.85, 43,849.98 and 18,345.67 is: 25,318.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,773.85 : 43,849.98 = 18,345.67 : x
  2. Step 2: Convert to fraction form
    31,773.85/43,849.98 = 18,345.67/x
  3. Step 3: Cross multiply
    31,773.85x = 43,849.98 × 18,345.67
  4. Step 4: Simplify right side
    31,773.85x = 804,457,262.59
  5. Step 5: Solve for x
    x = 804,457,262.59/31,773.85
  6. Step 6: Final answer
    x = 25,318.22

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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.