Home / 19,731.36-29,618.64-19,658.16

Finding the Fourth Proportional to 19,731.36, 29,618.64 and 19,658.16

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Solution

The fourth proportional to 19,731.36, 29,618.64 and 19,658.16 is: 29,508.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.36 : 29,618.64 = 19,658.16 : x
  2. Step 2: Convert to fraction form
    19,731.36/29,618.64 = 19,658.16/x
  3. Step 3: Cross multiply
    19,731.36x = 29,618.64 × 19,658.16
  4. Step 4: Simplify right side
    19,731.36x = 582,247,964.10
  5. Step 5: Solve for x
    x = 582,247,964.10/19,731.36
  6. Step 6: Final answer
    x = 29,508.76

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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.