Home / 19,830.08-29,717.52-13,174.40

Finding the Fourth Proportional to 19,830.08, 29,717.52 and 13,174.40

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Solution

The fourth proportional to 19,830.08, 29,717.52 and 13,174.40 is: 19,743.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.08 : 29,717.52 = 13,174.40 : x
  2. Step 2: Convert to fraction form
    19,830.08/29,717.52 = 13,174.40/x
  3. Step 3: Cross multiply
    19,830.08x = 29,717.52 × 13,174.40
  4. Step 4: Simplify right side
    19,830.08x = 391,510,495.49
  5. Step 5: Solve for x
    x = 391,510,495.49/19,830.08
  6. Step 6: Final answer
    x = 19,743.26

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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.