Home / 19,454.22-29,207.56-12,447.91

Finding the Fourth Proportional to 19,454.22, 29,207.56 and 12,447.91

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Solution

The fourth proportional to 19,454.22, 29,207.56 and 12,447.91 is: 18,688.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,454.22 : 29,207.56 = 12,447.91 : x
  2. Step 2: Convert to fraction form
    19,454.22/29,207.56 = 12,447.91/x
  3. Step 3: Cross multiply
    19,454.22x = 29,207.56 × 12,447.91
  4. Step 4: Simplify right side
    19,454.22x = 363,572,908.82
  5. Step 5: Solve for x
    x = 363,572,908.82/19,454.22
  6. Step 6: Final answer
    x = 18,688.64

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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.