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Finding the Fourth Proportional to 35,797.44, 53,702.40 and 13,612.80

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Solution

The fourth proportional to 35,797.44, 53,702.40 and 13,612.80 is: 20,421.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,797.44 : 53,702.40 = 13,612.80 : x
  2. Step 2: Convert to fraction form
    35,797.44/53,702.40 = 13,612.80/x
  3. Step 3: Cross multiply
    35,797.44x = 53,702.40 × 13,612.80
  4. Step 4: Simplify right side
    35,797.44x = 731,040,030.72
  5. Step 5: Solve for x
    x = 731,040,030.72/35,797.44
  6. Step 6: Final answer
    x = 20,421.57

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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.