Home / 19,468.99-29,178.10-8,935.21

Finding the Fourth Proportional to 19,468.99, 29,178.10 and 8,935.21

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Solution

The fourth proportional to 19,468.99, 29,178.10 and 8,935.21 is: 13,391.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,468.99 : 29,178.10 = 8,935.21 : x
  2. Step 2: Convert to fraction form
    19,468.99/29,178.10 = 8,935.21/x
  3. Step 3: Cross multiply
    19,468.99x = 29,178.10 × 8,935.21
  4. Step 4: Simplify right side
    19,468.99x = 260,712,450.90
  5. Step 5: Solve for x
    x = 260,712,450.90/19,468.99
  6. Step 6: Final answer
    x = 13,391.16

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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.