Home / 31,401.72-47,085.57-10,336.86

Finding the Fourth Proportional to 31,401.72, 47,085.57 and 10,336.86

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Solution

The fourth proportional to 31,401.72, 47,085.57 and 10,336.86 is: 15,499.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,401.72 : 47,085.57 = 10,336.86 : x
  2. Step 2: Convert to fraction form
    31,401.72/47,085.57 = 10,336.86/x
  3. Step 3: Cross multiply
    31,401.72x = 47,085.57 × 10,336.86
  4. Step 4: Simplify right side
    31,401.72x = 486,716,945.11
  5. Step 5: Solve for x
    x = 486,716,945.11/31,401.72
  6. Step 6: Final answer
    x = 15,499.69

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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.