Home / 19,628.20-29,399.10-10,383.40

Finding the Fourth Proportional to 19,628.20, 29,399.10 and 10,383.40

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Solution

The fourth proportional to 19,628.20, 29,399.10 and 10,383.40 is: 15,552.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,628.20 : 29,399.10 = 10,383.40 : x
  2. Step 2: Convert to fraction form
    19,628.20/29,399.10 = 10,383.40/x
  3. Step 3: Cross multiply
    19,628.20x = 29,399.10 × 10,383.40
  4. Step 4: Simplify right side
    19,628.20x = 305,262,614.94
  5. Step 5: Solve for x
    x = 305,262,614.94/19,628.20
  6. Step 6: Final answer
    x = 15,552.25

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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.