Home / 21,269.87-29,344.55-21,237.07

Finding the Fourth Proportional to 21,269.87, 29,344.55 and 21,237.07

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Solution

The fourth proportional to 21,269.87, 29,344.55 and 21,237.07 is: 29,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.87 : 29,344.55 = 21,237.07 : x
  2. Step 2: Convert to fraction form
    21,269.87/29,344.55 = 21,237.07/x
  3. Step 3: Cross multiply
    21,269.87x = 29,344.55 × 21,237.07
  4. Step 4: Simplify right side
    21,269.87x = 623,192,317.13
  5. Step 5: Solve for x
    x = 623,192,317.13/21,269.87
  6. Step 6: Final answer
    x = 29,299.29

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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.