Home / 31,461.76-43,415.58-17,311.90

Finding the Fourth Proportional to 31,461.76, 43,415.58 and 17,311.90

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Solution

The fourth proportional to 31,461.76, 43,415.58 and 17,311.90 is: 23,889.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,461.76 : 43,415.58 = 17,311.90 : x
  2. Step 2: Convert to fraction form
    31,461.76/43,415.58 = 17,311.90/x
  3. Step 3: Cross multiply
    31,461.76x = 43,415.58 × 17,311.90
  4. Step 4: Simplify right side
    31,461.76x = 751,606,179.40
  5. Step 5: Solve for x
    x = 751,606,179.40/31,461.76
  6. Step 6: Final answer
    x = 23,889.51

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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.