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Finding the Fourth Proportional to 35,212.40, 52,703.40 and 27,378.80

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Solution

The fourth proportional to 35,212.40, 52,703.40 and 27,378.80 is: 40,978.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,212.40 : 52,703.40 = 27,378.80 : x
  2. Step 2: Convert to fraction form
    35,212.40/52,703.40 = 27,378.80/x
  3. Step 3: Cross multiply
    35,212.40x = 52,703.40 × 27,378.80
  4. Step 4: Simplify right side
    35,212.40x = 1,442,955,847.92
  5. Step 5: Solve for x
    x = 1,442,955,847.92/35,212.40
  6. Step 6: Final answer
    x = 40,978.63

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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.