Home / 19,380.24-29,066.04-7,690.32

Finding the Fourth Proportional to 19,380.24, 29,066.04 and 7,690.32

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Solution

The fourth proportional to 19,380.24, 29,066.04 and 7,690.32 is: 11,533.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,380.24 : 29,066.04 = 7,690.32 : x
  2. Step 2: Convert to fraction form
    19,380.24/29,066.04 = 7,690.32/x
  3. Step 3: Cross multiply
    19,380.24x = 29,066.04 × 7,690.32
  4. Step 4: Simplify right side
    19,380.24x = 223,527,148.73
  5. Step 5: Solve for x
    x = 223,527,148.73/19,380.24
  6. Step 6: Final answer
    x = 11,533.77

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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.