Home / 31,620.60-47,431.71-14,976.72

Finding the Fourth Proportional to 31,620.60, 47,431.71 and 14,976.72

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Solution

The fourth proportional to 31,620.60, 47,431.71 and 14,976.72 is: 22,465.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,620.60 : 47,431.71 = 14,976.72 : x
  2. Step 2: Convert to fraction form
    31,620.60/47,431.71 = 14,976.72/x
  3. Step 3: Cross multiply
    31,620.60x = 47,431.71 × 14,976.72
  4. Step 4: Simplify right side
    31,620.60x = 710,371,439.79
  5. Step 5: Solve for x
    x = 710,371,439.79/31,620.60
  6. Step 6: Final answer
    x = 22,465.46

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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.