Home / 20,710.58-31,035.14-15,211.70

Finding the Fourth Proportional to 20,710.58, 31,035.14 and 15,211.70

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Solution

The fourth proportional to 20,710.58, 31,035.14 and 15,211.70 is: 22,794.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710.58 : 31,035.14 = 15,211.70 : x
  2. Step 2: Convert to fraction form
    20,710.58/31,035.14 = 15,211.70/x
  3. Step 3: Cross multiply
    20,710.58x = 31,035.14 × 15,211.70
  4. Step 4: Simplify right side
    20,710.58x = 472,097,121.99
  5. Step 5: Solve for x
    x = 472,097,121.99/20,710.58
  6. Step 6: Final answer
    x = 22,794.98

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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.