Home / 31,475.03-47,188.94-18,992.10

Finding the Fourth Proportional to 31,475.03, 47,188.94 and 18,992.10

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Solution

The fourth proportional to 31,475.03, 47,188.94 and 18,992.10 is: 28,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,475.03 : 47,188.94 = 18,992.10 : x
  2. Step 2: Convert to fraction form
    31,475.03/47,188.94 = 18,992.10/x
  3. Step 3: Cross multiply
    31,475.03x = 47,188.94 × 18,992.10
  4. Step 4: Simplify right side
    31,475.03x = 896,216,972.41
  5. Step 5: Solve for x
    x = 896,216,972.41/31,475.03
  6. Step 6: Final answer
    x = 28,473.91

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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.