Home / 31,511.35-47,232.63-15,511.89

Finding the Fourth Proportional to 31,511.35, 47,232.63 and 15,511.89

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Solution

The fourth proportional to 31,511.35, 47,232.63 and 15,511.89 is: 23,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.35 : 47,232.63 = 15,511.89 : x
  2. Step 2: Convert to fraction form
    31,511.35/47,232.63 = 15,511.89/x
  3. Step 3: Cross multiply
    31,511.35x = 47,232.63 × 15,511.89
  4. Step 4: Simplify right side
    31,511.35x = 732,667,360.97
  5. Step 5: Solve for x
    x = 732,667,360.97/31,511.35
  6. Step 6: Final answer
    x = 23,250.90

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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.