Home / 47,015.18-70,524.15-13,731.78

Finding the Fourth Proportional to 47,015.18, 70,524.15 and 13,731.78

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Solution

The fourth proportional to 47,015.18, 70,524.15 and 13,731.78 is: 20,598.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,015.18 : 70,524.15 = 13,731.78 : x
  2. Step 2: Convert to fraction form
    47,015.18/70,524.15 = 13,731.78/x
  3. Step 3: Cross multiply
    47,015.18x = 70,524.15 × 13,731.78
  4. Step 4: Simplify right side
    47,015.18x = 968,422,112.49
  5. Step 5: Solve for x
    x = 968,422,112.49/47,015.18
  6. Step 6: Final answer
    x = 20,598.07

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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.