Home / 21,404.68-29,545.22-14,699.70

Finding the Fourth Proportional to 21,404.68, 29,545.22 and 14,699.70

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Solution

The fourth proportional to 21,404.68, 29,545.22 and 14,699.70 is: 20,290.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.68 : 29,545.22 = 14,699.70 : x
  2. Step 2: Convert to fraction form
    21,404.68/29,545.22 = 14,699.70/x
  3. Step 3: Cross multiply
    21,404.68x = 29,545.22 × 14,699.70
  4. Step 4: Simplify right side
    21,404.68x = 434,305,907.18
  5. Step 5: Solve for x
    x = 434,305,907.18/21,404.68
  6. Step 6: Final answer
    x = 20,290.23

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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.