Home / 31,539.88-47,284.16-11,807.38

Finding the Fourth Proportional to 31,539.88, 47,284.16 and 11,807.38

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Solution

The fourth proportional to 31,539.88, 47,284.16 and 11,807.38 is: 17,701.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,539.88 : 47,284.16 = 11,807.38 : x
  2. Step 2: Convert to fraction form
    31,539.88/47,284.16 = 11,807.38/x
  3. Step 3: Cross multiply
    31,539.88x = 47,284.16 × 11,807.38
  4. Step 4: Simplify right side
    31,539.88x = 558,302,045.10
  5. Step 5: Solve for x
    x = 558,302,045.10/31,539.88
  6. Step 6: Final answer
    x = 17,701.46

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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.