Home / 19,636.45-29,443.47-13,403.98

Finding the Fourth Proportional to 19,636.45, 29,443.47 and 13,403.98

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Solution

The fourth proportional to 19,636.45, 29,443.47 and 13,403.98 is: 20,098.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,636.45 : 29,443.47 = 13,403.98 : x
  2. Step 2: Convert to fraction form
    19,636.45/29,443.47 = 13,403.98/x
  3. Step 3: Cross multiply
    19,636.45x = 29,443.47 × 13,403.98
  4. Step 4: Simplify right side
    19,636.45x = 394,659,683.01
  5. Step 5: Solve for x
    x = 394,659,683.01/19,636.45
  6. Step 6: Final answer
    x = 20,098.32

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1.5x scale

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.