Home / 31,511.28-47,222.36-17,477.49

Finding the Fourth Proportional to 31,511.28, 47,222.36 and 17,477.49

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Solution

The fourth proportional to 31,511.28, 47,222.36 and 17,477.49 is: 26,191.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.28 : 47,222.36 = 17,477.49 : x
  2. Step 2: Convert to fraction form
    31,511.28/47,222.36 = 17,477.49/x
  3. Step 3: Cross multiply
    31,511.28x = 47,222.36 × 17,477.49
  4. Step 4: Simplify right side
    31,511.28x = 825,328,324.68
  5. Step 5: Solve for x
    x = 825,328,324.68/31,511.28
  6. Step 6: Final answer
    x = 26,191.52

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1.5x scale

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.