Home / 35,690.32-53,541.56-12,311.28

Finding the Fourth Proportional to 35,690.32, 53,541.56 and 12,311.28

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Solution

The fourth proportional to 35,690.32, 53,541.56 and 12,311.28 is: 18,469.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,690.32 : 53,541.56 = 12,311.28 : x
  2. Step 2: Convert to fraction form
    35,690.32/53,541.56 = 12,311.28/x
  3. Step 3: Cross multiply
    35,690.32x = 53,541.56 × 12,311.28
  4. Step 4: Simplify right side
    35,690.32x = 659,165,136.80
  5. Step 5: Solve for x
    x = 659,165,136.80/35,690.32
  6. Step 6: Final answer
    x = 18,469.02

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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.