Home / 19,531.40-29,345.22-12,514.43

Finding the Fourth Proportional to 19,531.40, 29,345.22 and 12,514.43

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Solution

The fourth proportional to 19,531.40, 29,345.22 and 12,514.43 is: 18,802.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,531.40 : 29,345.22 = 12,514.43 : x
  2. Step 2: Convert to fraction form
    19,531.40/29,345.22 = 12,514.43/x
  3. Step 3: Cross multiply
    19,531.40x = 29,345.22 × 12,514.43
  4. Step 4: Simplify right side
    19,531.40x = 367,238,774.89
  5. Step 5: Solve for x
    x = 367,238,774.89/19,531.40
  6. Step 6: Final answer
    x = 18,802.49

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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.