Home / 34,228.71-47,235.15-19,121.67

Finding the Fourth Proportional to 34,228.71, 47,235.15 and 19,121.67

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Solution

The fourth proportional to 34,228.71, 47,235.15 and 19,121.67 is: 26,387.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,228.71 : 47,235.15 = 19,121.67 : x
  2. Step 2: Convert to fraction form
    34,228.71/47,235.15 = 19,121.67/x
  3. Step 3: Cross multiply
    34,228.71x = 47,235.15 × 19,121.67
  4. Step 4: Simplify right side
    34,228.71x = 903,214,950.70
  5. Step 5: Solve for x
    x = 903,214,950.70/34,228.71
  6. Step 6: Final answer
    x = 26,387.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.