Home / 31,592.12-43,530.66-21,502.76

Finding the Fourth Proportional to 31,592.12, 43,530.66 and 21,502.76

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Solution

The fourth proportional to 31,592.12, 43,530.66 and 21,502.76 is: 29,628.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,592.12 : 43,530.66 = 21,502.76 : x
  2. Step 2: Convert to fraction form
    31,592.12/43,530.66 = 21,502.76/x
  3. Step 3: Cross multiply
    31,592.12x = 43,530.66 × 21,502.76
  4. Step 4: Simplify right side
    31,592.12x = 936,029,116.97
  5. Step 5: Solve for x
    x = 936,029,116.97/31,592.12
  6. Step 6: Final answer
    x = 29,628.57

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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.