Home / 14,329.40-21,519.70-10,438.20

Finding the Fourth Proportional to 14,329.40, 21,519.70 and 10,438.20

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Solution

The fourth proportional to 14,329.40, 21,519.70 and 10,438.20 is: 15,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,329.40 : 21,519.70 = 10,438.20 : x
  2. Step 2: Convert to fraction form
    14,329.40/21,519.70 = 10,438.20/x
  3. Step 3: Cross multiply
    14,329.40x = 21,519.70 × 10,438.20
  4. Step 4: Simplify right side
    14,329.40x = 224,626,932.54
  5. Step 5: Solve for x
    x = 224,626,932.54/14,329.40
  6. Step 6: Final answer
    x = 15,675.95

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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.