Home / 28,313.97-42,476.33-9,339.70

Finding the Fourth Proportional to 28,313.97, 42,476.33 and 9,339.70

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Solution

The fourth proportional to 28,313.97, 42,476.33 and 9,339.70 is: 14,011.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313.97 : 42,476.33 = 9,339.70 : x
  2. Step 2: Convert to fraction form
    28,313.97/42,476.33 = 9,339.70/x
  3. Step 3: Cross multiply
    28,313.97x = 42,476.33 × 9,339.70
  4. Step 4: Simplify right side
    28,313.97x = 396,716,179.30
  5. Step 5: Solve for x
    x = 396,716,179.30/28,313.97
  6. Step 6: Final answer
    x = 14,011.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.