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Finding the Fourth Proportional to 28,444.32, 42,646.32 and 10,910.88

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Solution

The fourth proportional to 28,444.32, 42,646.32 and 10,910.88 is: 16,358.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,444.32 : 42,646.32 = 10,910.88 : x
  2. Step 2: Convert to fraction form
    28,444.32/42,646.32 = 10,910.88/x
  3. Step 3: Cross multiply
    28,444.32x = 42,646.32 × 10,910.88
  4. Step 4: Simplify right side
    28,444.32x = 465,308,879.96
  5. Step 5: Solve for x
    x = 465,308,879.96/28,444.32
  6. Step 6: Final answer
    x = 16,358.59

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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.