Home / 31,578.28-47,326.41-12,836.50

Finding the Fourth Proportional to 31,578.28, 47,326.41 and 12,836.50

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Solution

The fourth proportional to 31,578.28, 47,326.41 and 12,836.50 is: 19,238.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,578.28 : 47,326.41 = 12,836.50 : x
  2. Step 2: Convert to fraction form
    31,578.28/47,326.41 = 12,836.50/x
  3. Step 3: Cross multiply
    31,578.28x = 47,326.41 × 12,836.50
  4. Step 4: Simplify right side
    31,578.28x = 607,505,461.97
  5. Step 5: Solve for x
    x = 607,505,461.97/31,578.28
  6. Step 6: Final answer
    x = 19,238.08

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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.