Home / 31,336.38-47,018.34-11,610.72

Finding the Fourth Proportional to 31,336.38, 47,018.34 and 11,610.72

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Solution

The fourth proportional to 31,336.38, 47,018.34 and 11,610.72 is: 17,421.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,336.38 : 47,018.34 = 11,610.72 : x
  2. Step 2: Convert to fraction form
    31,336.38/47,018.34 = 11,610.72/x
  3. Step 3: Cross multiply
    31,336.38x = 47,018.34 × 11,610.72
  4. Step 4: Simplify right side
    31,336.38x = 545,916,780.60
  5. Step 5: Solve for x
    x = 545,916,780.60/31,336.38
  6. Step 6: Final answer
    x = 17,421.18

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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.