Home / 28,036.92-42,048.19-8,310.88

Finding the Fourth Proportional to 28,036.92, 42,048.19 and 8,310.88

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Solution

The fourth proportional to 28,036.92, 42,048.19 and 8,310.88 is: 12,464.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.92 : 42,048.19 = 8,310.88 : x
  2. Step 2: Convert to fraction form
    28,036.92/42,048.19 = 8,310.88/x
  3. Step 3: Cross multiply
    28,036.92x = 42,048.19 × 8,310.88
  4. Step 4: Simplify right side
    28,036.92x = 349,457,461.31
  5. Step 5: Solve for x
    x = 349,457,461.31/28,036.92
  6. Step 6: Final answer
    x = 12,464.19

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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.