Home / 31,428.91-47,144.83-10,370.80

Finding the Fourth Proportional to 31,428.91, 47,144.83 and 10,370.80

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Solution

The fourth proportional to 31,428.91, 47,144.83 and 10,370.80 is: 15,556.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,428.91 : 47,144.83 = 10,370.80 : x
  2. Step 2: Convert to fraction form
    31,428.91/47,144.83 = 10,370.80/x
  3. Step 3: Cross multiply
    31,428.91x = 47,144.83 × 10,370.80
  4. Step 4: Simplify right side
    31,428.91x = 488,929,602.96
  5. Step 5: Solve for x
    x = 488,929,602.96/31,428.91
  6. Step 6: Final answer
    x = 15,556.68

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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.