Home / 21,097.74-29,103.39-13,545.22

Finding the Fourth Proportional to 21,097.74, 29,103.39 and 13,545.22

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Solution

The fourth proportional to 21,097.74, 29,103.39 and 13,545.22 is: 18,685.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,097.74 : 29,103.39 = 13,545.22 : x
  2. Step 2: Convert to fraction form
    21,097.74/29,103.39 = 13,545.22/x
  3. Step 3: Cross multiply
    21,097.74x = 29,103.39 × 13,545.22
  4. Step 4: Simplify right side
    21,097.74x = 394,211,762.59
  5. Step 5: Solve for x
    x = 394,211,762.59/21,097.74
  6. Step 6: Final answer
    x = 18,685.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.