Home / 31,037.14-42,830.67-16,889.68

Finding the Fourth Proportional to 31,037.14, 42,830.67 and 16,889.68

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Solution

The fourth proportional to 31,037.14, 42,830.67 and 16,889.68 is: 23,307.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,037.14 : 42,830.67 = 16,889.68 : x
  2. Step 2: Convert to fraction form
    31,037.14/42,830.67 = 16,889.68/x
  3. Step 3: Cross multiply
    31,037.14x = 42,830.67 × 16,889.68
  4. Step 4: Simplify right side
    31,037.14x = 723,396,310.49
  5. Step 5: Solve for x
    x = 723,396,310.49/31,037.14
  6. Step 6: Final answer
    x = 23,307.44

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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.