Home / 19,635.89-29,469.42-10,278.77

Finding the Fourth Proportional to 19,635.89, 29,469.42 and 10,278.77

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Solution

The fourth proportional to 19,635.89, 29,469.42 and 10,278.77 is: 15,426.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,635.89 : 29,469.42 = 10,278.77 : x
  2. Step 2: Convert to fraction form
    19,635.89/29,469.42 = 10,278.77/x
  3. Step 3: Cross multiply
    19,635.89x = 29,469.42 × 10,278.77
  4. Step 4: Simplify right side
    19,635.89x = 302,909,242.87
  5. Step 5: Solve for x
    x = 302,909,242.87/19,635.89
  6. Step 6: Final answer
    x = 15,426.31

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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.