Home / 19,480.20-29,252.70-10,721.40

Finding the Fourth Proportional to 19,480.20, 29,252.70 and 10,721.40

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Solution

The fourth proportional to 19,480.20, 29,252.70 and 10,721.40 is: 16,099.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,480.20 : 29,252.70 = 10,721.40 : x
  2. Step 2: Convert to fraction form
    19,480.20/29,252.70 = 10,721.40/x
  3. Step 3: Cross multiply
    19,480.20x = 29,252.70 × 10,721.40
  4. Step 4: Simplify right side
    19,480.20x = 313,629,897.78
  5. Step 5: Solve for x
    x = 313,629,897.78/19,480.20
  6. Step 6: Final answer
    x = 16,099.93

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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.