Home / 31,130.64-46,682.16-8,938.86

Finding the Fourth Proportional to 31,130.64, 46,682.16 and 8,938.86

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Solution

The fourth proportional to 31,130.64, 46,682.16 and 8,938.86 is: 13,404.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,130.64 : 46,682.16 = 8,938.86 : x
  2. Step 2: Convert to fraction form
    31,130.64/46,682.16 = 8,938.86/x
  3. Step 3: Cross multiply
    31,130.64x = 46,682.16 × 8,938.86
  4. Step 4: Simplify right side
    31,130.64x = 417,285,292.74
  5. Step 5: Solve for x
    x = 417,285,292.74/31,130.64
  6. Step 6: Final answer
    x = 13,404.33

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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.