Home / 31,421.54-47,103.61-28,682.32

Finding the Fourth Proportional to 31,421.54, 47,103.61 and 28,682.32

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Solution

The fourth proportional to 31,421.54, 47,103.61 and 28,682.32 is: 42,997.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421.54 : 47,103.61 = 28,682.32 : x
  2. Step 2: Convert to fraction form
    31,421.54/47,103.61 = 28,682.32/x
  3. Step 3: Cross multiply
    31,421.54x = 47,103.61 × 28,682.32
  4. Step 4: Simplify right side
    31,421.54x = 1,351,040,671.76
  5. Step 5: Solve for x
    x = 1,351,040,671.76/31,421.54
  6. Step 6: Final answer
    x = 42,997.28

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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.