Home / 28,450.29-42,671.71-8,727.19

Finding the Fourth Proportional to 28,450.29, 42,671.71 and 8,727.19

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Solution

The fourth proportional to 28,450.29, 42,671.71 and 8,727.19 is: 13,089.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.29 : 42,671.71 = 8,727.19 : x
  2. Step 2: Convert to fraction form
    28,450.29/42,671.71 = 8,727.19/x
  3. Step 3: Cross multiply
    28,450.29x = 42,671.71 × 8,727.19
  4. Step 4: Simplify right side
    28,450.29x = 372,404,265.05
  5. Step 5: Solve for x
    x = 372,404,265.05/28,450.29
  6. Step 6: Final answer
    x = 13,089.65

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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.