Home / 31,027.07-42,818.43-16,880.42

Finding the Fourth Proportional to 31,027.07, 42,818.43 and 16,880.42

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Solution

The fourth proportional to 31,027.07, 42,818.43 and 16,880.42 is: 23,295.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,027.07 : 42,818.43 = 16,880.42 : x
  2. Step 2: Convert to fraction form
    31,027.07/42,818.43 = 16,880.42/x
  3. Step 3: Cross multiply
    31,027.07x = 42,818.43 × 16,880.42
  4. Step 4: Simplify right side
    31,027.07x = 722,793,082.14
  5. Step 5: Solve for x
    x = 722,793,082.14/31,027.07
  6. Step 6: Final answer
    x = 23,295.56

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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.