Home / 31,421.07-47,131.62-9,234.45

Finding the Fourth Proportional to 31,421.07, 47,131.62 and 9,234.45

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Solution

The fourth proportional to 31,421.07, 47,131.62 and 9,234.45 is: 13,851.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421.07 : 47,131.62 = 9,234.45 : x
  2. Step 2: Convert to fraction form
    31,421.07/47,131.62 = 9,234.45/x
  3. Step 3: Cross multiply
    31,421.07x = 47,131.62 × 9,234.45
  4. Step 4: Simplify right side
    31,421.07x = 435,234,447.39
  5. Step 5: Solve for x
    x = 435,234,447.39/31,421.07
  6. Step 6: Final answer
    x = 13,851.67

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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.