Home / 31,800.60-47,699.37-12,077.62

Finding the Fourth Proportional to 31,800.60, 47,699.37 and 12,077.62

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Solution

The fourth proportional to 31,800.60, 47,699.37 and 12,077.62 is: 18,115.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,800.60 : 47,699.37 = 12,077.62 : x
  2. Step 2: Convert to fraction form
    31,800.60/47,699.37 = 12,077.62/x
  3. Step 3: Cross multiply
    31,800.60x = 47,699.37 × 12,077.62
  4. Step 4: Simplify right side
    31,800.60x = 576,094,927.76
  5. Step 5: Solve for x
    x = 576,094,927.76/31,800.60
  6. Step 6: Final answer
    x = 18,115.85

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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.