Home / 19,815.64-29,722.34-5,585.04

Finding the Fourth Proportional to 19,815.64, 29,722.34 and 5,585.04

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Solution

The fourth proportional to 19,815.64, 29,722.34 and 5,585.04 is: 8,377.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.64 : 29,722.34 = 5,585.04 : x
  2. Step 2: Convert to fraction form
    19,815.64/29,722.34 = 5,585.04/x
  3. Step 3: Cross multiply
    19,815.64x = 29,722.34 × 5,585.04
  4. Step 4: Simplify right side
    19,815.64x = 166,000,457.79
  5. Step 5: Solve for x
    x = 166,000,457.79/19,815.64
  6. Step 6: Final answer
    x = 8,377.24

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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.