Home / 31,447.64-47,166.24-11,720.96

Finding the Fourth Proportional to 31,447.64, 47,166.24 and 11,720.96

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Solution

The fourth proportional to 31,447.64, 47,166.24 and 11,720.96 is: 17,579.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,447.64 : 47,166.24 = 11,720.96 : x
  2. Step 2: Convert to fraction form
    31,447.64/47,166.24 = 11,720.96/x
  3. Step 3: Cross multiply
    31,447.64x = 47,166.24 × 11,720.96
  4. Step 4: Simplify right side
    31,447.64x = 552,833,612.39
  5. Step 5: Solve for x
    x = 552,833,612.39/31,447.64
  6. Step 6: Final answer
    x = 17,579.49

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1.5x scale

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.