Home / 31,619.36-47,431.02-10,561.29

Finding the Fourth Proportional to 31,619.36, 47,431.02 and 10,561.29

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Solution

The fourth proportional to 31,619.36, 47,431.02 and 10,561.29 is: 15,842.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,619.36 : 47,431.02 = 10,561.29 : x
  2. Step 2: Convert to fraction form
    31,619.36/47,431.02 = 10,561.29/x
  3. Step 3: Cross multiply
    31,619.36x = 47,431.02 × 10,561.29
  4. Step 4: Simplify right side
    31,619.36x = 500,932,559.55
  5. Step 5: Solve for x
    x = 500,932,559.55/31,619.36
  6. Step 6: Final answer
    x = 15,842.59

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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.