Home / 19,838.11-29,742.58-9,457.15

Finding the Fourth Proportional to 19,838.11, 29,742.58 and 9,457.15

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Solution

The fourth proportional to 19,838.11, 29,742.58 and 9,457.15 is: 14,178.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,838.11 : 29,742.58 = 9,457.15 : x
  2. Step 2: Convert to fraction form
    19,838.11/29,742.58 = 9,457.15/x
  3. Step 3: Cross multiply
    19,838.11x = 29,742.58 × 9,457.15
  4. Step 4: Simplify right side
    19,838.11x = 281,279,844.45
  5. Step 5: Solve for x
    x = 281,279,844.45/19,838.11
  6. Step 6: Final answer
    x = 14,178.77

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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.