Home / 19,540.24-29,309.40-6,390.88

Finding the Fourth Proportional to 19,540.24, 29,309.40 and 6,390.88

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Solution

The fourth proportional to 19,540.24, 29,309.40 and 6,390.88 is: 9,586.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.24 : 29,309.40 = 6,390.88 : x
  2. Step 2: Convert to fraction form
    19,540.24/29,309.40 = 6,390.88/x
  3. Step 3: Cross multiply
    19,540.24x = 29,309.40 × 6,390.88
  4. Step 4: Simplify right side
    19,540.24x = 187,312,858.27
  5. Step 5: Solve for x
    x = 187,312,858.27/19,540.24
  6. Step 6: Final answer
    x = 9,586.01

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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.