Home / 31,975.68-47,998.08-13,520.64

Finding the Fourth Proportional to 31,975.68, 47,998.08 and 13,520.64

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Solution

The fourth proportional to 31,975.68, 47,998.08 and 13,520.64 is: 20,295.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,975.68 : 47,998.08 = 13,520.64 : x
  2. Step 2: Convert to fraction form
    31,975.68/47,998.08 = 13,520.64/x
  3. Step 3: Cross multiply
    31,975.68x = 47,998.08 × 13,520.64
  4. Step 4: Simplify right side
    31,975.68x = 648,964,760.37
  5. Step 5: Solve for x
    x = 648,964,760.37/31,975.68
  6. Step 6: Final answer
    x = 20,295.57

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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.