Home / 19,400.10-29,078.55-8,304.90

Finding the Fourth Proportional to 19,400.10, 29,078.55 and 8,304.90

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Solution

The fourth proportional to 19,400.10, 29,078.55 and 8,304.90 is: 12,448.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,400.10 : 29,078.55 = 8,304.90 : x
  2. Step 2: Convert to fraction form
    19,400.10/29,078.55 = 8,304.90/x
  3. Step 3: Cross multiply
    19,400.10x = 29,078.55 × 8,304.90
  4. Step 4: Simplify right side
    19,400.10x = 241,494,449.90
  5. Step 5: Solve for x
    x = 241,494,449.90/19,400.10
  6. Step 6: Final answer
    x = 12,448.10

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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.