Home / 28,305.14-42,457.80-8,583.86

Finding the Fourth Proportional to 28,305.14, 42,457.80 and 8,583.86

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Solution

The fourth proportional to 28,305.14, 42,457.80 and 8,583.86 is: 12,875.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.14 : 42,457.80 = 8,583.86 : x
  2. Step 2: Convert to fraction form
    28,305.14/42,457.80 = 8,583.86/x
  3. Step 3: Cross multiply
    28,305.14x = 42,457.80 × 8,583.86
  4. Step 4: Simplify right side
    28,305.14x = 364,451,598.82
  5. Step 5: Solve for x
    x = 364,451,598.82/28,305.14
  6. Step 6: Final answer
    x = 12,875.81

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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.