Home / 31,634.64-47,459.01-11,913.36

Finding the Fourth Proportional to 31,634.64, 47,459.01 and 11,913.36

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Solution

The fourth proportional to 31,634.64, 47,459.01 and 11,913.36 is: 17,872.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,634.64 : 47,459.01 = 11,913.36 : x
  2. Step 2: Convert to fraction form
    31,634.64/47,459.01 = 11,913.36/x
  3. Step 3: Cross multiply
    31,634.64x = 47,459.01 × 11,913.36
  4. Step 4: Simplify right side
    31,634.64x = 565,396,271.37
  5. Step 5: Solve for x
    x = 565,396,271.37/31,634.64
  6. Step 6: Final answer
    x = 17,872.69

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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.