Home / 19,390.28-29,061.03-10,505.27

Finding the Fourth Proportional to 19,390.28, 29,061.03 and 10,505.27

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Solution

The fourth proportional to 19,390.28, 29,061.03 and 10,505.27 is: 15,744.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.28 : 29,061.03 = 10,505.27 : x
  2. Step 2: Convert to fraction form
    19,390.28/29,061.03 = 10,505.27/x
  3. Step 3: Cross multiply
    19,390.28x = 29,061.03 × 10,505.27
  4. Step 4: Simplify right side
    19,390.28x = 305,293,966.63
  5. Step 5: Solve for x
    x = 305,293,966.63/19,390.28
  6. Step 6: Final answer
    x = 15,744.69

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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.