Home / 31,435.86-47,143.68-10,371.12

Finding the Fourth Proportional to 31,435.86, 47,143.68 and 10,371.12

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Solution

The fourth proportional to 31,435.86, 47,143.68 and 10,371.12 is: 15,553.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,435.86 : 47,143.68 = 10,371.12 : x
  2. Step 2: Convert to fraction form
    31,435.86/47,143.68 = 10,371.12/x
  3. Step 3: Cross multiply
    31,435.86x = 47,143.68 × 10,371.12
  4. Step 4: Simplify right side
    31,435.86x = 488,932,762.52
  5. Step 5: Solve for x
    x = 488,932,762.52/31,435.86
  6. Step 6: Final answer
    x = 15,553.34

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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.