Home / 31,635.06-47,469.53-20,539.14

Finding the Fourth Proportional to 31,635.06, 47,469.53 and 20,539.14

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Solution

The fourth proportional to 31,635.06, 47,469.53 and 20,539.14 is: 30,819.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,635.06 : 47,469.53 = 20,539.14 : x
  2. Step 2: Convert to fraction form
    31,635.06/47,469.53 = 20,539.14/x
  3. Step 3: Cross multiply
    31,635.06x = 47,469.53 × 20,539.14
  4. Step 4: Simplify right side
    31,635.06x = 974,983,219.71
  5. Step 5: Solve for x
    x = 974,983,219.71/31,635.06
  6. Step 6: Final answer
    x = 30,819.71

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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.