Home / 31,369.01-43,288.70-17,221.76

Finding the Fourth Proportional to 31,369.01, 43,288.70 and 17,221.76

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Solution

The fourth proportional to 31,369.01, 43,288.70 and 17,221.76 is: 23,765.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,369.01 : 43,288.70 = 17,221.76 : x
  2. Step 2: Convert to fraction form
    31,369.01/43,288.70 = 17,221.76/x
  3. Step 3: Cross multiply
    31,369.01x = 43,288.70 × 17,221.76
  4. Step 4: Simplify right side
    31,369.01x = 745,507,342.61
  5. Step 5: Solve for x
    x = 745,507,342.61/31,369.01
  6. Step 6: Final answer
    x = 23,765.73

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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.