Home / 31,658.45-43,688.12-17,511.30

Finding the Fourth Proportional to 31,658.45, 43,688.12 and 17,511.30

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Solution

The fourth proportional to 31,658.45, 43,688.12 and 17,511.30 is: 24,165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,658.45 : 43,688.12 = 17,511.30 : x
  2. Step 2: Convert to fraction form
    31,658.45/43,688.12 = 17,511.30/x
  3. Step 3: Cross multiply
    31,658.45x = 43,688.12 × 17,511.30
  4. Step 4: Simplify right side
    31,658.45x = 765,035,688.20
  5. Step 5: Solve for x
    x = 765,035,688.20/31,658.45
  6. Step 6: Final answer
    x = 24,165.30

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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.