Home / 47,031.24-70,491.24-20,680.86

Finding the Fourth Proportional to 47,031.24, 70,491.24 and 20,680.86

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Solution

The fourth proportional to 47,031.24, 70,491.24 and 20,680.86 is: 30,996.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,031.24 : 70,491.24 = 20,680.86 : x
  2. Step 2: Convert to fraction form
    47,031.24/70,491.24 = 20,680.86/x
  3. Step 3: Cross multiply
    47,031.24x = 70,491.24 × 20,680.86
  4. Step 4: Simplify right side
    47,031.24x = 1,457,819,465.67
  5. Step 5: Solve for x
    x = 1,457,819,465.67/47,031.24
  6. Step 6: Final answer
    x = 30,996.83

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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.