Home / 41,428.68-57,142.70-31,324.74

Finding the Fourth Proportional to 41,428.68, 57,142.70 and 31,324.74

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Solution

The fourth proportional to 41,428.68, 57,142.70 and 31,324.74 is: 43,206.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,428.68 : 57,142.70 = 31,324.74 : x
  2. Step 2: Convert to fraction form
    41,428.68/57,142.70 = 31,324.74/x
  3. Step 3: Cross multiply
    41,428.68x = 57,142.70 × 31,324.74
  4. Step 4: Simplify right side
    41,428.68x = 1,789,980,220.40
  5. Step 5: Solve for x
    x = 1,789,980,220.40/41,428.68
  6. Step 6: Final answer
    x = 43,206.31

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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.