Home / 19,603.43-29,405.72-4,812.35

Finding the Fourth Proportional to 19,603.43, 29,405.72 and 4,812.35

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Solution

The fourth proportional to 19,603.43, 29,405.72 and 4,812.35 is: 7,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,603.43 : 29,405.72 = 4,812.35 : x
  2. Step 2: Convert to fraction form
    19,603.43/29,405.72 = 4,812.35/x
  3. Step 3: Cross multiply
    19,603.43x = 29,405.72 × 4,812.35
  4. Step 4: Simplify right side
    19,603.43x = 141,510,555.16
  5. Step 5: Solve for x
    x = 141,510,555.16/19,603.43
  6. Step 6: Final answer
    x = 7,218.66

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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.