Home / 31,037.68-42,832.82-16,891.40

Finding the Fourth Proportional to 31,037.68, 42,832.82 and 16,891.40

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Solution

The fourth proportional to 31,037.68, 42,832.82 and 16,891.40 is: 23,310.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,037.68 : 42,832.82 = 16,891.40 : x
  2. Step 2: Convert to fraction form
    31,037.68/42,832.82 = 16,891.40/x
  3. Step 3: Cross multiply
    31,037.68x = 42,832.82 × 16,891.40
  4. Step 4: Simplify right side
    31,037.68x = 723,506,295.75
  5. Step 5: Solve for x
    x = 723,506,295.75/31,037.68
  6. Step 6: Final answer
    x = 23,310.58

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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.