Home / 31,865.96-43,977.84-17,721.56

Finding the Fourth Proportional to 31,865.96, 43,977.84 and 17,721.56

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Solution

The fourth proportional to 31,865.96, 43,977.84 and 17,721.56 is: 24,457.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,865.96 : 43,977.84 = 17,721.56 : x
  2. Step 2: Convert to fraction form
    31,865.96/43,977.84 = 17,721.56/x
  3. Step 3: Cross multiply
    31,865.96x = 43,977.84 × 17,721.56
  4. Step 4: Simplify right side
    31,865.96x = 779,355,930.23
  5. Step 5: Solve for x
    x = 779,355,930.23/31,865.96
  6. Step 6: Final answer
    x = 24,457.32

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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.