Home / 21,950.14-30,281.30-15,251.84

Finding the Fourth Proportional to 21,950.14, 30,281.30 and 15,251.84

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Solution

The fourth proportional to 21,950.14, 30,281.30 and 15,251.84 is: 21,040.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,950.14 : 30,281.30 = 15,251.84 : x
  2. Step 2: Convert to fraction form
    21,950.14/30,281.30 = 15,251.84/x
  3. Step 3: Cross multiply
    21,950.14x = 30,281.30 × 15,251.84
  4. Step 4: Simplify right side
    21,950.14x = 461,845,542.59
  5. Step 5: Solve for x
    x = 461,845,542.59/21,950.14
  6. Step 6: Final answer
    x = 21,040.67

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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.