Home / 31,182.32-46,762.47-8,989.71

Finding the Fourth Proportional to 31,182.32, 46,762.47 and 8,989.71

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Solution

The fourth proportional to 31,182.32, 46,762.47 and 8,989.71 is: 13,481.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,182.32 : 46,762.47 = 8,989.71 : x
  2. Step 2: Convert to fraction form
    31,182.32/46,762.47 = 8,989.71/x
  3. Step 3: Cross multiply
    31,182.32x = 46,762.47 × 8,989.71
  4. Step 4: Simplify right side
    31,182.32x = 420,381,044.18
  5. Step 5: Solve for x
    x = 420,381,044.18/31,182.32
  6. Step 6: Final answer
    x = 13,481.39

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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.