Home / 19,776.14-29,626.92-15,372.20

Finding the Fourth Proportional to 19,776.14, 29,626.92 and 15,372.20

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Solution

The fourth proportional to 19,776.14, 29,626.92 and 15,372.20 is: 23,029.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,776.14 : 29,626.92 = 15,372.20 : x
  2. Step 2: Convert to fraction form
    19,776.14/29,626.92 = 15,372.20/x
  3. Step 3: Cross multiply
    19,776.14x = 29,626.92 × 15,372.20
  4. Step 4: Simplify right side
    19,776.14x = 455,430,939.62
  5. Step 5: Solve for x
    x = 455,430,939.62/19,776.14
  6. Step 6: Final answer
    x = 23,029.31

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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.