Home / 34,231.44-47,240.64-18,918.12

Finding the Fourth Proportional to 34,231.44, 47,240.64 and 18,918.12

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Solution

The fourth proportional to 34,231.44, 47,240.64 and 18,918.12 is: 26,107.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,231.44 : 47,240.64 = 18,918.12 : x
  2. Step 2: Convert to fraction form
    34,231.44/47,240.64 = 18,918.12/x
  3. Step 3: Cross multiply
    34,231.44x = 47,240.64 × 18,918.12
  4. Step 4: Simplify right side
    34,231.44x = 893,704,096.40
  5. Step 5: Solve for x
    x = 893,704,096.40/34,231.44
  6. Step 6: Final answer
    x = 26,107.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.