Home / 31,487.85-43,455.24-17,340.71

Finding the Fourth Proportional to 31,487.85, 43,455.24 and 17,340.71

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Solution

The fourth proportional to 31,487.85, 43,455.24 and 17,340.71 is: 23,931.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487.85 : 43,455.24 = 17,340.71 : x
  2. Step 2: Convert to fraction form
    31,487.85/43,455.24 = 17,340.71/x
  3. Step 3: Cross multiply
    31,487.85x = 43,455.24 × 17,340.71
  4. Step 4: Simplify right side
    31,487.85x = 753,544,497.54
  5. Step 5: Solve for x
    x = 753,544,497.54/31,487.85
  6. Step 6: Final answer
    x = 23,931.28

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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.