Home / 26,142.32-39,213.61-6,420.89

Finding the Fourth Proportional to 26,142.32, 39,213.61 and 6,420.89

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Solution

The fourth proportional to 26,142.32, 39,213.61 and 6,420.89 is: 9,631.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,142.32 : 39,213.61 = 6,420.89 : x
  2. Step 2: Convert to fraction form
    26,142.32/39,213.61 = 6,420.89/x
  3. Step 3: Cross multiply
    26,142.32x = 39,213.61 × 6,420.89
  4. Step 4: Simplify right side
    26,142.32x = 251,786,276.31
  5. Step 5: Solve for x
    x = 251,786,276.31/26,142.32
  6. Step 6: Final answer
    x = 9,631.37

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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.