Home / 31,977.48-47,970.58-10,911.86

Finding the Fourth Proportional to 31,977.48, 47,970.58 and 10,911.86

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Solution

The fourth proportional to 31,977.48, 47,970.58 and 10,911.86 is: 16,369.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,977.48 : 47,970.58 = 10,911.86 : x
  2. Step 2: Convert to fraction form
    31,977.48/47,970.58 = 10,911.86/x
  3. Step 3: Cross multiply
    31,977.48x = 47,970.58 × 10,911.86
  4. Step 4: Simplify right side
    31,977.48x = 523,448,253.08
  5. Step 5: Solve for x
    x = 523,448,253.08/31,977.48
  6. Step 6: Final answer
    x = 16,369.28

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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.