Home / 47,143.42-70,715.64-13,864.12

Finding the Fourth Proportional to 47,143.42, 70,715.64 and 13,864.12

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Solution

The fourth proportional to 47,143.42, 70,715.64 and 13,864.12 is: 20,796.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,143.42 : 70,715.64 = 13,864.12 : x
  2. Step 2: Convert to fraction form
    47,143.42/70,715.64 = 13,864.12/x
  3. Step 3: Cross multiply
    47,143.42x = 70,715.64 × 13,864.12
  4. Step 4: Simplify right side
    47,143.42x = 980,410,118.84
  5. Step 5: Solve for x
    x = 980,410,118.84/47,143.42
  6. Step 6: Final answer
    x = 20,796.33

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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.