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Finding the Fourth Proportional to 26,484.32, 39,730.80 and 8,012

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Solution

The fourth proportional to 26,484.32, 39,730.80 and 8,012 is: 12,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,484.32 : 39,730.80 = 8,012 : x
  2. Step 2: Convert to fraction form
    26,484.32/39,730.80 = 8,012/x
  3. Step 3: Cross multiply
    26,484.32x = 39,730.80 × 8,012
  4. Step 4: Simplify right side
    26,484.32x = 318,323,169.60
  5. Step 5: Solve for x
    x = 318,323,169.60/26,484.32
  6. Step 6: Final answer
    x = 12,019.31

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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.