Home / 31,512.69-47,278.20-9,326.64

Finding the Fourth Proportional to 31,512.69, 47,278.20 and 9,326.64

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Solution

The fourth proportional to 31,512.69, 47,278.20 and 9,326.64 is: 13,992.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.69 : 47,278.20 = 9,326.64 : x
  2. Step 2: Convert to fraction form
    31,512.69/47,278.20 = 9,326.64/x
  3. Step 3: Cross multiply
    31,512.69x = 47,278.20 × 9,326.64
  4. Step 4: Simplify right side
    31,512.69x = 440,946,751.25
  5. Step 5: Solve for x
    x = 440,946,751.25/31,512.69
  6. Step 6: Final answer
    x = 13,992.67

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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.