Home / 31,511.24-43,484.96-17,171.20

Finding the Fourth Proportional to 31,511.24, 43,484.96 and 17,171.20

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Solution

The fourth proportional to 31,511.24, 43,484.96 and 17,171.20 is: 23,695.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.24 : 43,484.96 = 17,171.20 : x
  2. Step 2: Convert to fraction form
    31,511.24/43,484.96 = 17,171.20/x
  3. Step 3: Cross multiply
    31,511.24x = 43,484.96 × 17,171.20
  4. Step 4: Simplify right side
    31,511.24x = 746,688,750.58
  5. Step 5: Solve for x
    x = 746,688,750.58/31,511.24
  6. Step 6: Final answer
    x = 23,695.95

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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.