Home / 47,138.82-70,718.65-15,558.64

Finding the Fourth Proportional to 47,138.82, 70,718.65 and 15,558.64

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Solution

The fourth proportional to 47,138.82, 70,718.65 and 15,558.64 is: 23,341.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,138.82 : 70,718.65 = 15,558.64 : x
  2. Step 2: Convert to fraction form
    47,138.82/70,718.65 = 15,558.64/x
  3. Step 3: Cross multiply
    47,138.82x = 70,718.65 × 15,558.64
  4. Step 4: Simplify right side
    47,138.82x = 1,100,286,016.64
  5. Step 5: Solve for x
    x = 1,100,286,016.64/47,138.82
  6. Step 6: Final answer
    x = 23,341.40

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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.