Home / 19,587.48-29,383.06-6,439.88

Finding the Fourth Proportional to 19,587.48, 29,383.06 and 6,439.88

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Solution

The fourth proportional to 19,587.48, 29,383.06 and 6,439.88 is: 9,660.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.48 : 29,383.06 = 6,439.88 : x
  2. Step 2: Convert to fraction form
    19,587.48/29,383.06 = 6,439.88/x
  3. Step 3: Cross multiply
    19,587.48x = 29,383.06 × 6,439.88
  4. Step 4: Simplify right side
    19,587.48x = 189,223,380.43
  5. Step 5: Solve for x
    x = 189,223,380.43/19,587.48
  6. Step 6: Final answer
    x = 9,660.42

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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.