Home / 31,520.90-47,284.07-10,456.44

Finding the Fourth Proportional to 31,520.90, 47,284.07 and 10,456.44

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Solution

The fourth proportional to 31,520.90, 47,284.07 and 10,456.44 is: 15,685.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,520.90 : 47,284.07 = 10,456.44 : x
  2. Step 2: Convert to fraction form
    31,520.90/47,284.07 = 10,456.44/x
  3. Step 3: Cross multiply
    31,520.90x = 47,284.07 × 10,456.44
  4. Step 4: Simplify right side
    31,520.90x = 494,422,988.63
  5. Step 5: Solve for x
    x = 494,422,988.63/31,520.90
  6. Step 6: Final answer
    x = 15,685.56

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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.