Home / 31,471.21-47,195.57-10,407.36

Finding the Fourth Proportional to 31,471.21, 47,195.57 and 10,407.36

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Solution

The fourth proportional to 31,471.21, 47,195.57 and 10,407.36 is: 15,607.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,471.21 : 47,195.57 = 10,407.36 : x
  2. Step 2: Convert to fraction form
    31,471.21/47,195.57 = 10,407.36/x
  3. Step 3: Cross multiply
    31,471.21x = 47,195.57 × 10,407.36
  4. Step 4: Simplify right side
    31,471.21x = 491,181,287.40
  5. Step 5: Solve for x
    x = 491,181,287.40/31,471.21
  6. Step 6: Final answer
    x = 15,607.32

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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.