Home / 28,295.64-42,451.40-8,305.61

Finding the Fourth Proportional to 28,295.64, 42,451.40 and 8,305.61

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Solution

The fourth proportional to 28,295.64, 42,451.40 and 8,305.61 is: 12,460.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,295.64 : 42,451.40 = 8,305.61 : x
  2. Step 2: Convert to fraction form
    28,295.64/42,451.40 = 8,305.61/x
  3. Step 3: Cross multiply
    28,295.64x = 42,451.40 × 8,305.61
  4. Step 4: Simplify right side
    28,295.64x = 352,584,580.86
  5. Step 5: Solve for x
    x = 352,584,580.86/28,295.64
  6. Step 6: Final answer
    x = 12,460.74

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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.