Home / 21,545.37-29,712.56-13,983.62

Finding the Fourth Proportional to 21,545.37, 29,712.56 and 13,983.62

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Solution

The fourth proportional to 21,545.37, 29,712.56 and 13,983.62 is: 19,284.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,545.37 : 29,712.56 = 13,983.62 : x
  2. Step 2: Convert to fraction form
    21,545.37/29,712.56 = 13,983.62/x
  3. Step 3: Cross multiply
    21,545.37x = 29,712.56 × 13,983.62
  4. Step 4: Simplify right side
    21,545.37x = 415,488,929.79
  5. Step 5: Solve for x
    x = 415,488,929.79/21,545.37
  6. Step 6: Final answer
    x = 19,284.37

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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.