Home / 19,643.43-29,446.25-12,603.81

Finding the Fourth Proportional to 19,643.43, 29,446.25 and 12,603.81

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Solution

The fourth proportional to 19,643.43, 29,446.25 and 12,603.81 is: 18,893.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.43 : 29,446.25 = 12,603.81 : x
  2. Step 2: Convert to fraction form
    19,643.43/29,446.25 = 12,603.81/x
  3. Step 3: Cross multiply
    19,643.43x = 29,446.25 × 12,603.81
  4. Step 4: Simplify right side
    19,643.43x = 371,134,877.19
  5. Step 5: Solve for x
    x = 371,134,877.19/19,643.43
  6. Step 6: Final answer
    x = 18,893.59

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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.