Home / 31,027.76-42,818.46-16,880.58

Finding the Fourth Proportional to 31,027.76, 42,818.46 and 16,880.58

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Solution

The fourth proportional to 31,027.76, 42,818.46 and 16,880.58 is: 23,295.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,027.76 : 42,818.46 = 16,880.58 : x
  2. Step 2: Convert to fraction form
    31,027.76/42,818.46 = 16,880.58/x
  3. Step 3: Cross multiply
    31,027.76x = 42,818.46 × 16,880.58
  4. Step 4: Simplify right side
    31,027.76x = 722,800,439.51
  5. Step 5: Solve for x
    x = 722,800,439.51/31,027.76
  6. Step 6: Final answer
    x = 23,295.28

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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.